Preliminary specification
File under Integrated Circuits, IC02
1997 Jun 16
Page 2
Philips SemiconductorsPreliminary specification
Audio processor for VHS hi-fiTDA9615H
FEATURES
• All functions controlled via the 2-wire I2C-bus
• Single supply
• Integrated standby modes for low power consumption
• Integrated power muting for line and RFC output
• Full support of video recorder feature modes
• Audio level meter output
• Hi-fi signal processing:
– Adjustment-free
– High performance
– Patented low distortion switching noise suppressor
– NTSC and PAL (SECAM) standard
• Linear audio input with level adjustment
• 5 stereo inputs and additional mono audio input
• 2 stereo outputs (line and decoder) with independent
output selection
• RF converter output with overload protect AGC.
GENERAL DESCRIPTION
The TDA9615H is an audio control and processing circuit
for VHS hi-fi video recorders, controlled via the I2C-bus.
The device is adjustment-free using an integrated
auto-calibration circuit. Extensive input and output
selection is offered, including full support for
(Euro-SCART) pay-TV decoding and video recorder
feature modes.
TUNL1tuner input left
TUNR2tuner input right
CINL3cinch input left
CINR4cinch input right
EXT1L5external 1 input left
EXT1R6external 1 input right
EXT2L7external 2 input left
EXT2R8external 2 input right
AUXL9auxiliary input left
AUXR10auxiliary input right
RFCAGC11RFC AGC timing input
RFCOUT12RFC output
MUTEC13mute for RFC output
MUTEL14mute for line output left
LINEL15line output left
LINER16line output right
MUTER17mute for line output right
DECL18decoder output left
DECR19decoder output right
LINOUT20linear audio output
LININ21linear audio input
DCFBL22NR DC feedback left
SYMBOLPINDESCRIPTION
DCREFL23NR DC reference left
EMPHL24NR emphasis left
DCL25NR DC decoupling left
DETL26NR detector left
AGND27analog ground
I
ref
V
ref
28reference current standard
29reference voltage filter
DETR30NR detector right
DCR31NR DC decoupling right
EMPHR32NR emphasis right
DCREFR33NR DC reference right
DCFBR34NR DC feedback right
V
CC
35supply voltage
FMOUT36FM output
FMIN37FM input
V5OUT385 V decoupling output
ENVOUT39envelope output
HID40HID input
SDA41I
SCL42I
2
C-bus SDA input/output
2
C-bus SCL input
DGND43digital ground
SAP44tuner SAP input
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Philips SemiconductorsPreliminary specification
Audio processor for VHS hi-fiTDA9615H
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TUNL
TUNR
CINL
CINR
EXT1L
EXT1R
EXT2L
EXT2R
AUXL
AUXR
RFCAGC
SCL
DGND
43
42
13
14
MUTEL
MUTEC
SDA
HID
41
40
TDA9615H
15
16
LINEL
LINER
SAP
44
1
2
3
4
5
6
7
8
9
10
11
12
RFCOUT
V5OUT
ENVOUT
39
383736
17
18
DECL
MUTER
FMIN
19
DECR
CC
FMOUT
V
35
21
20
LININ
LINOUT
DCFBR
34
22
DCFBL
33
32
31
30
29
28
27
26
25
24
23
MGK470
DCREFR
EMPHR
DCR
DETR
V
ref
I
ref
AGND
DETL
DCL
EMPHL
DCREFL
Fig.2 Pin configuration.
FUNCTIONAL DESCRIPTION
An overview of input/output selections is given in Figs 3 to 5.
Full control of the TDA9615H is accomplished via the 2-wire I2C-bus. Up to 400 kbits/s bus speed can be used, in
accordance with the I2C-bus fast-mode specification. The detailed functional description can be found in
Chapter “I2C-bus protocol”.
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Philips SemiconductorsPreliminary specification
Audio processor for VHS hi-fiTDA9615H
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DECL
LOH
decoder select
TUNER
EXT1
DECR
SAP
MUTE
OUTPUT SELECT
0 dB
+1 dB
output select
MUTE
FMIN
tape
FMOUT
LINEL
line select
EXT2
LEFT
RIGHT
LINER
OUTPUT SELECT
STEREO
NORMAL
HI-FI
AUDIO FM
PROCESSING
RFC mute
0 dB AGC
NORMALLEFT
NORMALRIGHT
RFCOUT
MUTE
NORMALSTEREO
ENVOUT
envelope select
OUTPUT SELECT
STEREO
normal input levelnormal select
MGK473
HF ENVELOPEHF envelope
MUTE
(0 to +14 dB)
LININ
processing
linear audio
LINOUT
input select
TUNL
TUNR
volume left
CINCH
TUNER
CINL
CINR
MUTE
(−47 to 0 dB;
EXT1
EXT1L
0 to +15 dB)
EXT1R
EXT2
EXT2L
MUTE
SAP
EXT2R
0 to +15 dB)
(−47 to 0 dB;
DUB MIX
AUX
SAP
AUXL
NORMAL
(1)
AUXR
1997 Jun 166
volume right
INPUT SELECT
INPUT LEFT
VOLUME
VOLUME LEFT
SAP
TUNER
EXT2
MUTE
Fig.3 Input/output selections; standard operation.
(1) For ‘Dub Mix’ mode signal selections see Fig.4.
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Philips SemiconductorsPreliminary specification
Audio processor for VHS hi-fiTDA9615H
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DECL
LOH
decoder select
TUNER
EXT1
SAP
DECR
MUTE
0 dB
+1 dB
OUTPUT SELECT
MUTE
FMIN
tape
FMOUT
LINEL
line select
LEFT
RIGHT
LINER
EXT2
OUTPUT SELECT
STEREO
NORMAL
HI-FI
AUDIO FM
PROCESSING
RFC mute
NORMAL
NORMAL
(playback)
RFCOUT
0 dB AGC
MUTE
NORMAL
MUTE
LEFT
RIGHT
LEFTRIGHT
normal input levelnormal select
LEFT
NORMAL
MUTE
(0 to +14 dB)
RIGHT
envelope select
OUTPUT SELECT
LEFTRIGHT
ENVOUT
HF ENVELOPEHF envelope
STEREO
LININ
processing
linear audio
LINOUT
MGK474
(record)
EXT2L
EXT2R
MUTE
0 to +15 dB)
(−47 to 0 dB;
SAP
DUB MIX
AUXL
AUXR
volume hi-fi
input select
TUNL
TUNR
MUTE
volume auxoutput select
CINL
CINR
0 to +15 dB)
(−47 to 0 dB;
EXT1L
EXT1R
1997 Jun 167
INPUT SELECT
INPUT LEFT
VOLUME
VOLUME LEFT
SAP
TUNER
EXT2
MUTE
Fig.4 Input/output selections; ‘Dub Mix’ mode.
‘Dub Mix’ mode (IS2= 1; IS1= 0; IS0= 1); input mixing of hi-fi (‘playback’ mode) signal with AUX input for linear audio recording (audio dubbing).
Selections generally used in combination with this mode are shown in heavy line type.
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1997 Jun 168
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agewidth
Philips SemiconductorsPreliminary specification
Audio processor for VHS hi-fiTDA9615H
decoder select
TUNL
TUNR
CINL
CINR
EXT1L
EXT1R
EXT2L
EXT2R
SAP
AUXL
AUXR
input select
MUTE
output select
MUTE
TUNER
EXT1
SAP
MUTE
OUTPUT SELECT
line select
EXT2
OUTPUT SELECT
RFC mute
0 dB AGC
MUTE
LOH
0 dB
+1 dB
RFCOUT
DECL
DECR
LINEL
LINER
TUNL
TUNR
CINL
CINR
EXT1L
EXT1R
EXT2L
EXT2R
SAP
AUXL
AUXR
a. Active standby mode (STBA = 1, STBP = 0); 75% power reduction.
input select
MUTE
b. Passive standby mode (STBP = 1); 90% power reduction.
Fig.5 Input/output selections; standby modes.
MGK475
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Philips SemiconductorsPreliminary specification
Audio processor for VHS hi-fiTDA9615H
I2C-BUS PROTOCOL
Addressing and data bytes
For programming the device (write mode) seven data byte registers are available; they are addressable via eight
subaddresses. Automatic subaddress incrementing enables the writing of successive data bytes in one transmission.
During power-on, data byte registers are reset to a default state by use of a Power On Reset (POR) circuit which signal
is derived from the internally generated I
one data byte register is available without subaddressing.
Table 1 TDA9615H addresses and data bytes
DATA BYTEADDRESS
Write mode
Slave address byte (B8H)10111000
Subaddress bytes (00H to 07H) 0
Control byte (subaddress 00)AFMDOCSHHDETHNTSCMUTESTBPSTBA
Select byte (subaddress 01)DOS1DOS0s5s4NIL3NIL2NIL1NIL0
Input byte (subaddress 02)i7IS2IS1IS0NS2NS1NS0i0
Output byte (subaddress 03)LOHOSNOSROSLEOSLOSDOSRFCM
Left volume byte
(subaddress 04)
Right volume byte
(subaddress 05)
Volume byte (subaddress 06)simultaneous loading of subaddress 04 and subaddress 05 register
Power byte (subaddress 07)CALSVCCHTESTPORRp3p2p1p0
2
C-bus supply voltage (V5OUT; pin 38). For reading from the device (read mode)
1. Use of subaddress F0H to F7H (1111 0XXX) instead of 00H to 07H (0000 0XXX) disables the automatic subaddress
incrementing allowing continuous writing to a single data byte register.
2. The state of unused read bits are not reliable; their state may change during development.
Table 2 Status of data bytes after POR
DATA BYTEADDRESS
Control byte10001100
Select byte001
Input byte0
(1)
0001110
(1)
(1)
1
0000
(1)
Output byte00000001
Left volume byte0
Right volume byte0
Power byte00000
(1)
(1)
1000000
1000000
(1)
(1)
0
(1)
0
(1)
0
Note
1. For eventual future compatibility it is advised to keep unused write bits equal to POR state.
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Philips SemiconductorsPreliminary specification
Audio processor for VHS hi-fiTDA9615H
Valid transmissions to and from TDA9615H
Table 3 Examples of valid transmissions
Audio FM modeplayback; loop-through
Dropout cancellingon; offDOC
Headswitch noise cancel
sample-and-hold time
Playback hi-fi carrier detectionslow; fastDETH
Record carrier ratio0; 6; 8; 9.5; 11; 12.5; 13.5 dBDOC, SHH and DETH
System standardNTSC
Power muteoutput muting
Operation modefull operation
Normal input level0
Input selectTuner
Normal selectInput Select; Volume; Input-Left; Volume-Left; SAP;
Line output amplification0 dB
Output selectmute
Envelope outputOutput Select
Line output selectOutput Select
Decoder output selectOutput Select
RFC output0 dB; mute
Volume left−47 to 0 dB
Volume right−47 to 0 dB
Auto-calibrationoff
Supply voltage9 V
Teststandard operation
Control byte; subaddress 00 (hi-fi and general control)
Table 5 Bits of control byte
BITDESCRIPTION
AFMaudio FM mode; see Table 6
DOCdropout cancel; see Table 6
SHHsample-and-hold high-state; see Table 6
DETHdetector high; see Table 6
NTSCNTSC television system standard; see Table 7
MUTEpower mute; see Table 8
STBPstandby mode passive; see Table 9
STBAstandby mode active; see Table 9
Table 6 Bits AFM, DOC, SHH and DETH
AFMDOCSHHDETHMODEREMARKSDESCRIPTION
0X
(1)
00X
01X
0X
0X
0X
0X
1X
(1)
(1)
(1)
(1)
(1)
1000loop-through
1001record0 dB mix0 dB FM output carrier ratio (1 : 1)
1010record6 dB mix6 dB FM output carrier ratio (1 : 2)
1011record8 dB mix8 dB FM output carrier ratio (1 : 2.5)
1100record9.5 dB mixstandard 9.5 dB FM output carrier ratio (1 : 3)
1101record11 dB mix11 dB FM output carrier ratio (1 : 3.5)
1110record12.5 dB mix12.5 dB FM output carrier ratio (1 : 4.2)
1111record13.5 dB mix13.5 dB FM output carrier ratio (1 : 4.7)
hi-fi circuit in playback mode
playbackDOC offno dropout cancelling
playbackDOC ondropout cancelling active
playbacksample-and-
headswitch noise cancel time is 6 µs
hold time = 6 µs
playbacksample-and-
headswitch noise cancel time is 8 µs
hold time = 8 µs
record/loop-throughhi-fi circuit in record/loop-through mode
(3)(4)
no FM output signal (EE mode)
Notes
1. X = don’t care.
2. Auto-normal function: if during hi-fi ‘playback’ mode no FM carrier is detected at FMIN (pin 37) the ‘Normal’ mode
audio signal (LININ; pin 21) is automatically selected by the output select function.
a) Hi-fi carrier detection time (i.e. auto-normal release time) can be selected via bit DETH:
‘fast’ mode: 1 to 2 HID periods (33 to 66 ms NTSC, 40 to 80 ms PAL)
‘slow’ mode: 7 to 8 HID periods (233 to 267 ms NTSC, 280 to 320 ms PAL).
2
b) The status of hi-fi detection can be monitored via the I
C-bus; see bit AUTN of the read byte (see Table 31).
c) If muting is required instead of automatic selection of the ‘Normal’ mode audio signal the normal input level
function should be set to mute; see bits NIL3 to NIL0 of the select byte.
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Philips SemiconductorsPreliminary specification
Audio processor for VHS hi-fiTDA9615H
3. Modes ‘loop-through’ and ‘record’ are equal in audio signal flow; FMOUT (pin 36) however is muted during
‘loop-through’ mode.
1. Bit NTSC selects between the system standard settings for NTSC and PAL (SECAM) use. The auto-calibration
function uses the system standard HID frequency of 29.97 Hz for NTSC and 25 Hz for PAL. After calibration bit NTSC
allows immediate switching between the NTSC and PAL system standard.
2. POR.
Table 8 Bit MUTE
MUTE
0−power mute function released; mute switches open
1mute
MODEDESCRIPTION
(2)
hi-fi circuit in ‘NTSC’ mode (FM carriers: 1.3 and 1.7 MHz)
(1)
MODEDESCRIPTION
(2)
power mute function activated; mute switches closed
Notes
1. Bit MUTE controls the line and RFC output mute switches at pins 13, 14 and 17 (power mute function). Power mute
is also automatically activated at supply voltage power-up or power-down (VCC; pin 35).
2. POR.
Table 9 Bits STBP and STBA
STBPSTBAMODEDESCRIPTION
00− (note 1)full operation
01
(4)
1
(2)
(5)
X
active standby
passive standby
(3)
(3)
standby mode; reduced power consumption
standby mode; minimum power consumption
Notes
1. POR.
2. By selecting STBA = 1 the TDA9615H is switched to low-power ‘active standby’ mode. To reduce power
consumption most circuits are switched off. RFC, line and decoder outputs however remain active. This way the
direct audio selections offered via the line output select and decoder output select functions (bits LOS and DOS of
the output byte) remain operable in this mode. The ‘Output Select’ mode signal is muted.
3. Calibration and I
2
C-bus registers are not affected by using ‘active standby’ or ‘passive standby’ mode.
4. By selecting STBP = 1 the TDA9615H is switched to minimum power ‘passive standby’ mode. All circuits except
power mute, I2C-bus and the line input reference buffer (voltage at pins 1 to 10 and 44) are switched off for minimum
power consumption. Use of the power mute function (bit MUTE of control byte) ensures pop-free switching of the line
and RFC output to and from ‘passive standby’ mode. To obtain minimum power consumption the power mute
function should be de-activated again during ‘passive standby’ mode.
5. X = don’t care.
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Philips SemiconductorsPreliminary specification
Audio processor for VHS hi-fiTDA9615H
Select byte; subaddress 01 (decoder output select and linear audio volume control)
Table 10 Bits of select byte
BITDESCRIPTION
DOS1decoder output select 1; see Table 11
DOS0decoder output select 0; see Table 11
NIL3normal input level 3; see Table 12
NIL2normal input level 2; see Table 12
NIL1normal input level 1; see Table 12
NIL0normal input level 0; see Table 12
Table 11 Bits DOS1 and DOS0; note 1
DOS1DOS0MODEDESCRIPTION
00Tunerdecoder output signal is TUNL and TUNR input signal
01Ext1decoder output signal is EXT1L and EXT1R input signal
10SAPdecoder output signal is SAP input signal
11mutemute
Note
1. By selecting bit DOS = 1 of the output byte several independent signal input selections are offered for the decoder
outputs DECL and DECR (pins 18 and 19) via bits DOS1 and DOS0:
a) TUNL and TUNR inputs (pins 1 and 2)
b) EXT1L and EXT1R inputs (pins 5 and 6)
c) SAP input (pin 44)
d) Mute.
These decoder selections are also operable in ‘active standby’ mode (bit STBA = 1 of the control byte).
1. Mute and 15 settings of amplification can be selected for the linear audio input signal (LININ; pin 21). This level
control can replace the manual adjustment of ‘playback’ mode level at the linear audio circuit.
2. POR.
Input byte; subaddress 02 (input selection for hi-fi and normal audio)
Table 13 Bits of input byte
BITDESCRIPTION
IS2input select 2; see Table 14
IS1input select 1; see Table 14
IS0input select 0; see Table 14
NS2normal select 2; see Table 15
NS1normal select 1; see Table 15
NS0normal select 0; see Table 15
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Philips SemiconductorsPreliminary specification
Audio processor for VHS hi-fiTDA9615H
Table 14 Bits IS2, IS1 and IS0; note 1
IS2IS1IS0MODEDESCRIPTION
000Tuner
001CinchCINL and CINR input
010Ext1EXT1L and EXT1R input (TV input)
011Ext2EXT2L and EXT2R input (decoder input)
100SAPSAP; mono input
101Dub Mix
110NormalLININ input (linear audio)
111AuxAUXL and AUXR input (e.g. camcorder input)
Notes
1. Bits IS2, IS1 and IS0 select the input signal which is led to the volume controls of the hi-fi processing and generally
via the normal select function to the linear audio circuit (LINOUT; pin 20).
2. POR.
3. ‘Dub Mix’ is a special selection for linear audio use supporting audio dubbing (a video recorder feature mode for
sound recording of linear audio only). ‘Dub Mix’ connects the AUX input signal to the left channel
(1⁄2AUXL +1⁄2AUXR) and the hi-fi output signal to the right channel (generally1⁄2hi-fi left +1⁄2hi-fi right but also
hi-fi left or hi-fi right can be selected). ‘Dub Mix’ also changes part of the ‘Output Select’ mode settings to ‘Normal’
mode for monitoring of the linear audio recording (see control bits OSN, OSR and OSL of the output byte for
‘Dub Mix’ mode input and output selection).
(2)
TUNL and TUNR input
(3)
AUX input signal (L) and selection of hi-fi output signal (R)
Table 15 Bits NS2, NS1, NS0; note 1
NS2NS1NS0MODEDESCRIPTION
000Input Selecthi-fi input selection
001Volumehi-fi volume control
010Input-Leftleft channel of hi-fi input selection only
011Volume-Leftleft channel of hi-fi volume control
100SAPSAP; mono input
101TunerTUNL and TUNR input
110Ext2EXT2L and EXT2R input
111mute
(2)
mute
Notes
1. With bits NS2, NS1 and NS0 the input signal is selected which is available at the LINOUT output (pin 20) for
connection to an external linear audio circuit. The signal selected with the input select function (via
bits IS2, IS1 and IS0) is available in the following ways:
a) Left and right channel combined, optional including hi-fi volume control (
1
⁄2hi-fi left +1⁄2hi-fi right).
b) Left channel only (language I), optional including left channel volume control.
Furthermore the SAP input (pin 44), tuner input (pins 1 and 2) or EXT2 input (pins 7 and 8) can be selected
independently. Also a mute setting is available.
2. POR.
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Philips SemiconductorsPreliminary specification
Audio processor for VHS hi-fiTDA9615H
Output byte; subaddress 03 (output selection and control)
Table 16 Bits of output byte
BITDESCRIPTION
LOHline output high; see Table 17
OSNoutput select normal; see Table 18
OSRoutput select right; see Table 18
OSLoutput select left; see Table 18
EOSenvelope output select; see Table 20
LOSline output select; see Table 21
DOSdecoder output select; see Table 22
RFCMRFC mute; see Table 23
Table 17 Bit LOH; note 1
LOHMODEDESCRIPTION
00dB
11 dB1 dB line output amplification
(2)
no line output amplification
Notes
1. An additional 1 dB amplification can be selected for line and decoder outputs LINEL, LINER, DECL and DECR
(pins 15, 16, 18 and 19).
2. POR.
Table 18 Bits OSN, OSR and OSL; notes 1 and 2
OSNOSROSLMODEDESCRIPTION
000mute
(3)
mute; no selection
001Leftleft hi-fi channel selected (language I)
010Rightright hi-fi channel selected (language II)
011Stereohi-fi stereo selected
100Normalnormal selected (linear audio; LININ input)
101Mix-Leftmix of hi-fi left with normal (
110Mix-Rightmix of hi-fi right with normal (
111Mix-Stereomix of hi-fi stereo with normal (
1
⁄2hi-fi left +1⁄2normal)
1
⁄2hi-fi right +1⁄2normal)
1
⁄2hi-fi stereo +1⁄2normal)
Notes
1. When no hi-fi signal is found on tape during ‘playback’ mode the auto-normal function is activated; all output select
function modes except ‘mute’ will be overruled and changed to ‘Normal’ mode. If muting of the hi-fi sound is desired
instead of selecting linear audio the normal input level (bits NIL3 to NIL0 of the select byte) should be set to mute.
Activation of the auto-normal function can be monitored by reading bit AUTN of the read byte.
2. If ‘Dub Mix’ mode is selected via the input select function (see control bits IS2, IS1 and IS0 of the input byte)
functionality of the modes ‘Mix-Left’, ‘Mix-Right’ and ‘Mix-Stereo’ are changed to support audio dubbing input mixing.
Hi-fi channel selection is offered for the input and normal sound is available at the output for monitoring of the linear
audio recording. See also Table 19.
mute
Leftlefthi-fi left
Rightrighthi-fi right
Stereostereo
Normalnormalnormal
Mix-Leftnormalhi-fi left
Mix-Rightnormalhi-fi right
Mix-Stereonormal
Note
1. POR.
Table 20 Bit EOS
EOS
0Output Select
1Stereo or HF envelope
mutemute
(1)
MODEDESCRIPTION
(2)
(3)
audio peak envelope of ‘Output Select’ mode signal
audio peak envelope of hi-fi stereo or HF envelope
1
⁄2hi-fi left +1⁄2hi-fi right
1
⁄2hi-fi left +1⁄2hi-fi right
Notes
1. A signal selection for output ENVOUT (pin 39) is available using bit EOS.
2. POR.
3. The selection made for mode ‘Stereo or HF envelope’ depends upon the mode of the hi-fi processing:
a) Hi-fi ‘loop-through’ mode or ‘record’ mode (bit AFM = 1): audio peak envelope of hi-fi stereo.
b) Hi-fi ‘playback’ mode (bit AFM = 0): HF envelope of left channel FM carrier.
Table 21 Bit LOS; notes 1 and 2
LOSMODEDESCRIPTION
0Output Select
(3)
line output signal is set by output select function
1Ext2line output signal is EXT2L and EXT2R input
Notes
1. An independent selection of EXT2L and EXT2R inputs (pins 7 and 8) to the line outputs LINEL and LINER
(pins 15 and 16) is possible by setting bit LOS to 1. This direct selection is also operable in ‘active standby’ mode
(STBA = 1 of the control byte).
2. Using bit DOS and bits DOS1 and DOS0 of the output byte mode ‘Tuner’ or ‘Ext1’ selection to the outputs DECL and
DECR (pins 18 and 19) is offered realizing full Euro-SCART pay-TV decoder switching.
3. POR.
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Philips SemiconductorsPreliminary specification
Audio processor for VHS hi-fiTDA9615H
Table 22 Bit DOS; notes 1 and 2
DOSMODEDESCRIPTION
(3)
0Output Select
1decoder select
Notes
1. An independent selection of TUNL and TUNR (pins 1 and 2), EXT1L and EXT1R (pins 5 and 6), SAP (pin 44) or
mute is possible for the decoder outputs DECL and DECR (pins 18 and 19) by setting bit DOS to 1. Source selection
is offered by using bits DOS1 and DOS0 of the select byte. These direct selections are also operable in ‘active
standby’ mode (STBA = 1 of the control byte).
2. In combination with the independent EXT2 selection to the outputs LINEL and LINER (pins 15 and 16) via bit LOS
full Euro-SCART pay-TV decoder switching is offered.
3. POR.
4. Internal mode.
Table 23 Bit RFCM; note 1
decoder output signal is set by output select function
(4)
decoder output signal is set by decoder output select function
RFCMMODEDESCRIPTION
0−RFC output is set by output select function
1mute
(2)
RFC output signal is muted (AGC reset)
Notes
1. RF converter output RFCOUT (pin 12) can be muted using bit RFCM. During mute the AGC capacitor at pin 11
(RFCAGC) is discharged, resetting AGC control.
2. POR.
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Philips SemiconductorsPreliminary specification
Audio processor for VHS hi-fiTDA9615H
Volume bytes; subaddresses 04, 05 and 06 (left and right channel volume control)
Table 24 Bits of volume bytes; see Table 25
BITDESCRIPTION
VLSvolume left sign
VL5volume left 5
↓↓
VL0volume left 0
VRSvolume right sign
VR5volume right 5
↓↓
VR0volume right 0
Table 25 bits VLS, VRS, VL5 to VL0 and VR5 to VR0; note 1
0101011−43 dB
0101100−44 dB
0101101−45 dB
0101110−46 dB
0101111−47 dB
011X
1X
1X
1X
1X
1X
(2)
(2)
(2)
(2)
(2)
(2)
X
(2)
X
(2)
X
(2)
X
(2)
X
(2)
00000dB
0001+1dB
0010+2dB
0011+3dB
0100+4dB
(2)
X
(2)
X
(2)
X
mute
(3)
↓↓↓↓↓↓↓↓
1X
1X
1X
1X
1X
(2)
(2)
(2)
(2)
(2)
(2)
X
(2)
X
(2)
X
(2)
X
(2)
X
1011+11dB
1100+12dB
1101+13dB
1110+14dB
1111+15dB
Notes
1. Left and right volume controls can be set simultaneous by using subaddress 06 (volume byte). Addressing the
volume byte will load both the left and right volume registers with the same data value.
2. X = don’t care.
3. POR.
1997 Jun 1619
Page 20
Philips SemiconductorsPreliminary specification
Audio processor for VHS hi-fiTDA9615H
Power byte; subaddress 07 (power-up control and test)
Table 26 Bits of power byte
BITDESCRIPTION
CALScalibration start; see Table 27
VCCHVCC high; see Table 28
TESTtest; see Table 29
PORRPOR reset; see Table 30
Table 27 Bit CALS; note 1
(2)
CALS
0− (note 3)−
1start calibrationstart of automatic calibration cycle
Notes
1. Pin 39 (ENVOUT) or bit CALR of the read byte can be monitored to check for successful completion of the calibration.
It is advised to keep CALS logic 1 after calibration to ensure a reliable CALR state.
2. After a change of bit CALS from logic 0 to logic 1, an automatic frequency calibration is performed setting hi-fi
modem, band-pass filter and noise reduction. Use of auto-calibration is only needed after power-up of the supply
voltage (POR).
3. POR.
MODEDESCRIPTION
Table 28 Bit VCCH; notes 1 and 2
VCCHMODEDESCRIPTION
09 V; note 3output DC voltage is 4.5 V
112 Voutput DC voltage is 6 V
Notes
1. To maximize the output drive when using 12 V supply voltage (V
DECL and DECR (pins 15, 16, 18 and 19) can be changed using bit VCCH.
2. Use of the power mute function (bit MUTE of the control byte) ensures disturbance-free switching of the line output
signal when setting VCCH after power-up.
3. POR.
Table 29 Bit TEST; note 1
TESTMODEDESCRIPTION
0− (note 2)standard operation
1testspecial measurement test modes
Notes
1. Several special test modes can be selected for testing and evaluation purposes. Bits s4 to NIL0 of the select byte
are used for selection of these tests.
2. POR.
; pin 35), the DC level of outputs LINEL, LINER,
CC
1997 Jun 1620
Page 21
Philips SemiconductorsPreliminary specification
Audio processor for VHS hi-fiTDA9615H
Table 30 Bit PORR; note 1
PORRMODEDESCRIPTION
0− (note 2)−
1POR resetreset of POR signal bit
Notes
1. Bit POR of the read byte can be used to detect the occurrence of a power-on reset situation (bit POR reads logic 1
in case the I2C register contents equal the POR default state). When applying bit POR this way, PORR should be
used after a power-on reset to force a reset of the POR read bit state to logic 0.
2. POR.
Read byte (device state information)
Table 31 Bits of read byte
BITDESCRIPTION
CALRcalibration ready; see Table 32
AUTNauto-normal; see Table 33
PORpower-on reset; see Table 34
Table 32 Bit CALR; notes 1 and 2
CALRDESCRIPTION
0device is not calibrated
1device has completed auto-calibration
Notes
1. Bit CALR = 0 indicates the device is not calibrated. After an automatic calibration is started by setting bit CALS of the
power byte the end of calibration is signalled by this bit. If for some reason a calibration cannot be completed (e.g.
no HID signal available or hi-fi processing is in ‘playback’ mode) CALR remains logic ‘0’. If calibration is lost due to
a power-on reset situation CALR will return to logic 0 as well.
2. Also the envelope output (pin 39) can be used to check for end of calibration.
Table 33 Bit AUTN; notes 1 and 2
AUTNDESCRIPTION
0audio FM signal is detected at FM input
1no audio FM signal detected; normal sound is selected instead of hi-fi
Notes
1. When hi-fi processing is in ‘playback’ mode but no hi-fi carrier input signal is detected the auto-normal function is
activated. Auto-normal overrules the ‘Output Select’ mode setting, selecting normal sound (i.e. linear audio) instead
of hi-fi. The state of this auto-normal function can be checked via bit AUTN.
2. The auto-normal function is only active (bit AUTN = logic 1) for hi-fi ‘playback’ mode (bit AFM = 0); during ‘record’ or
‘loop-through’ mode bit AUTN is always logic 0.
1997 Jun 1621
Page 22
Philips SemiconductorsPreliminary specification
Audio processor for VHS hi-fiTDA9615H
Table 34 Bit POR; notes 1 and 2
PORDESCRIPTION
2
0I
1I
Notes
1. At power-on or during a power voltage dip, an internal power-on reset signal is generated which resets the I2C-bus
data bits to a predefined state. When the internal data bits are found to be in POR state (due to an actual power-on
reset but also if set via the I2C-bus) bit POR signals logic 1.
2. Using the POR bit to detect the occurrence of a power-on reset requires bit PORR to be set logic 1 after power-up.
Setting bit PORR forces the POR bit to logic 0 independent of other I2C-bus bit settings. After calibration is completed
also the CALR bit can be used to detect a power-on reset; calibration will be lost in such situation which is signalled
by CALR = 0.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
channel crosstalkleft or right carrier ∆f = 0 kHz−−80−dB
noise levelTUN = −∞ dBV; note 4−−96−90dBV
linearityTUN= −3.5 to −33.5 dBV5859.662dB
frequency response 300 HzTUN = 1 kHz to 300 Hz−0.6+0.4+1.4dB
frequency response 10 kHzTUN = 1 kHz to 10 kHz−9.2−7.7−6.2dB
FM demodulator and noise reduction (LINEL and LINER; pins 15 and 16)
1. Signals below maximum input level are handled without internal clipping. Higher input levels however can still be
handled properly by the demodulators. Typical input level equals two carriers of 30 mV (RMS value).
2. Single carrier signal at FMIN of 75 mV (RMS value) and amplitude modulated. Control bandwidth is the modulation
frequency at which the amplitude modulation is attenuated 3 dB by the HF AGC.
3. Sample-and-hold audio distortion is measured using 500 Hz at HID input (pin 40). FMIN: f
= 10 kHz; ∆f = 50 kHz.
mod
Audio distortion is measured using a 3 kHz 4th order low-pass filter. Value is corrected with 24 dB in order to
calculate equivalent distortion at 30 Hz HID input.
4. Typical value: B = 20 Hz to 20 kHz, unweighted; production testing: B = 300 Hz to 20 kHz, unweighted.
1997 Jun 1628
Page 29
Philips SemiconductorsPreliminary specification
Audio processor for VHS hi-fiTDA9615H
APPLICATION AND TEST INFORMATION
39 kΩ
2.2
10
10 nF
9 or 12 V
47 µF
SDA SCL
ndbook, full pagewidth
AF/HF envelope
HID
(2%)
µF
nF
352743382928
envelope
40394142
select
output
SUPPLY
C-BUS
2
I
INTERFACE
HI-FI
DETECTOR
+ playback
DCL
DCR
standby mode
DROPOUT
CANCELING
HID
68 kΩ
100 nF
R1
2223242526
CCA
noise reduction
SAMPLE-
HID
PLL
LEVEL
DETECTOR
HF LIMITER
3.3 nF
5.6 kΩ
C1
R2
47 µF
RECTIFIER
WEIGHTING AND
FM DE-EMPHASIS
audio
AUDIO
AND-HOLD
CCO
(1.3 or
1.4 MHz)
1.3 or 1.4 MHz
37
(1)
68 kΩ
10 µF
100 nF
R1
3433323130
CCA
DETECTOR
noise reduction
HID
CLIPPER
SAMPLE-
PLL
HF
HF LIMITER
+
M
36
3.3 nF
5.6 kΩ
C1
R2
47 µF
RECTIFIER
DETECTOR
WEIGHTING AND
FM DE-EMPHASIS
audio
AUDIO
CLIPPER
AND-HOLD
CCO
(1.7 or
1.8 MHz)
1.7 or 1.8 MHz
ratio
carrier
10 µF
HF
SAP
44
10 µF
18
+1 dB 12 V
decoder select
TDA9615H
output select
volume left
TUL
TUR
1
2
E1L
TUL
345
to decoder
SAP
L
line
10 µF
SAP
M
R
line select
dub
+
N
10 µF
15
14
16
17
select + record
E2R
DCL
PEAK HOLD
L
mute
E2L
M
envelope output
10 µF
19
E1R
TUR
+++
M
M
volume right
+
N
dub
input select
E1L
E1R
E2L
E2R
6
789
10
M
SAP
TUL
+
TUR
10 µF
12
AUTO-MUTE
DCR
PEAK HOLD
R
level
input
normal
M
normal select
+
E2L
E2R
RFC
13
M
MGK472
mute
RF-converter
11
2021
10 µF
3.3 MΩ
220 nF10 µF
linear audio
= mute
M
C-bus data and
2
control signals
I
Fig.6 Application diagram.
10 nF
10 nF
FMIN
FMOUT
SAP
from
tuner
1997 Jun 1629
cinch
ext1
ext2
(11×)
220 nF
aux
component values of R1, R2 and C1; see Table 36.
(1) Different standard audio levels can be selected by changing the
Page 30
Philips SemiconductorsPreliminary specification
Audio processor for VHS hi-fiTDA9615H
Automatic calibration; see Fig.7
By means of bit CALS (power byte) the integrated
auto-calibration system is activated. By adjusting the
carrier frequencies, band-pass filters and noise reduction
filters auto-calibration ensures that the hi-fi processing
always is in accordance with the VHS hi-fi system
standard. Calibration is only needed after start-up of the
video recorder; as long as the supply voltage (pin 35) is
available calibration settings remain stable.
Auto-calibration is performed with the device in hi-fi
‘loop-through’ mode, no standby or test mode should be
active (auto-calibration demands bit settings AFM = 1,
STBP = 0, STBA = 0 and TEST = 0). After setting bit
CALS (power byte) to logic 1 auto-calibration is started.
Calibration is performed fully automatically, using the HID
input signal as a reference.
Calibration of the oscillator frequencies is performed by
measuring the number of oscillator cycles within one HID
HIGH period and comparing this with an internal value
stored in ROM. Four different ROM values are available for
NTSC or PAL (SECAM) system calibration of both the left
and right channel carrier.
In case of NTSC calibration a special routine is active for
the right channel carrier calibration resulting in a frequency
difference between the left and right channel carrier of
approximately 401.2 kHz. This value effectively reduces
the crosstalk from hi-fi carriers to the video colour signal as
present during ‘playback’ mode using Extended Play (EP)
tape speed.
NTSC calibration uses the standard 29.97 Hz (i.e.
16.683 ms) HID signal where PAL calibration uses the
standard 25 Hz (i.e. 20 ms) HID signal. The maximum
frequency error after auto-calibration is ±5 kHz assuming
a HID HIGH-time error of maximum 5 µs. To realize NTSC
EP optimization within±2 kHz, HID jitter should not exceed
1 µs. In general the crystal based HID signal available in
the video recorder can be used without modification.
After calibration of the oscillators, the band-pass filters are
calibrated together with the integrated ‘weighting’ and
‘FM de-emphasis’ filter of the noise reduction. The total
auto-calibration time needed is 17 HID cycles or less.
End of calibration is signalled by bit CALR of the read byte.
The envelope output can also be used to monitor
calibration; for this purpose ENVOUT (pin 39) is forced
>2.5 V during calibration. The audio signal to the audio
envelope (level meter) function should be muted;
otherwise the audio envelope output may be >2.5 V as
well making it impossible to detect end of calibration via
the ENVOUT pin.
handbook, full pagewidth
2
I
C-bus write
pin 40
left channel oscillator
right channel oscillator
band-pass and
noise reduction filters
2
I
C-bus read
pin 39
(CALS)
(HID)
(CALR)
(ENVOUT)
logic 0
logic 1
Fig.7 Example of automatic calibration flow.
1997 Jun 1630
logic 0
4 V3 V
5 V
logic 1
calibration
ready
MGK477
Page 31
Philips SemiconductorsPreliminary specification
Audio processor for VHS hi-fiTDA9615H
After a calibration in ‘NTSC’ or ‘PAL’ mode the oscillators
and band-pass filters can be switched between NTSC and
PAL system frequencies without the need for additional
calibration. Switching between these system modes is
executed immediately and can be done in any operational
mode. Frequency accuracy of switching is 100 kHz±3 kHz
for both carriers. For ‘record’ mode however it is advised
to use re-calibration after system switching; this to obtain
the best possible frequency accuracy. A new
auto-calibration can be started by first resetting bit CALS
to logic 0 followed by setting bit CALS to logic 1 again.
Envelope output; see Figs 8 to 11
ENVOUT (pin 39) is an analog output for stereo audio level
(e.g. level meter display) and for ‘playback’ mode FM
Table 35 Envelope output select
AFMEOSENVELOPE OUTPUTFUNCTIONAL USE
0 (playback mode)0AF envelope of output selectlevel meter display
0 (playback mode)1HF envelopeauto-tracking or manual tracking display
1 (record mode/
loop-through mode)
1 (record mode/
loop-through mode)
0AF envelope of output selectlevel meter display
1AF envelope of hi-fi stereorecord volume control (and level display)
carrier level (e.g. auto-tracking). At the microcontroller only
one A/D converter input is needed for reading of all
necessary information. During ‘playback’ mode I
bit EOS offers selection between audio or carrier level
information. Audio level information is always output
during ‘loop-through’ mode and ‘record’ mode however
now EOS offers a fixed selection of hi-fi stereo (i.e.
independent of the ‘Output Select’ mode setting); helpful
when audio level information is used by the microcontroller
for controlling the hi-fi record volume.
2
C-bus
Audio envelope uses time multiplexing to output both left
and right channel audio level. A peak hold function and
dynamic range compression (square root function) are
included for easy read-out. The peak hold function as well
as left and right channel multiplexing is controlled by the
HID input signal (pin 40).
The HF envelope output signal is continuous and derived
from the left channel carrier. HF envelope shows a
logarithmic characteristic.
1997 Jun 1631
Page 32
Philips SemiconductorsPreliminary specification
Audio processor for VHS hi-fiTDA9615H
handbook, full pagewidth
I2C-bus
registers
HID input
HID period
envelope out
EOS = 1 and
AFM = 0
0123
HF envelope
EOS = 0 or AFM = 1
peak right
in period -1
peak left
in period 0
peak right
in period 0
peak left
in period 1
peak right
in period 1
peak right
in period 2
peak left
in period 2
Fig.8 Timing diagram of envelope output signal.
peak left
in period 3
MGK478
handbook, full pagewidth
left channel audio:
output select
hi-fi
right channel audio:
output select
hi-fi
EOS • AFM
FULL WAVE
RECTIFIER
FULL WAVE
RECTIFIER
SQUARE ROOT
COMPRESSION
SQUARE ROOT
COMPRESSION
1.3/1.4 MHz carrier
Fig.9 Functional diagram of envelope output circuit.
1997 Jun 1632
RESET
PEAK HOLD
RESET
PEAK HOLD
HF LEVEL DETECTOR
SAMPLE
SAMPLE-
AND-HOLD
SAMPLE
SAMPLE-
AND-HOLD
AF
envelope
HF
envelope
HID
(pin 40)
ENVOUT
(pin 39)
EOS • AFM
MGK480
Page 33
Philips SemiconductorsPreliminary specification
Audio processor for VHS hi-fiTDA9615H
LOH = 0.
MGK481
output
voltage
(V)
5
4
3
2
1
0
−4010
handbook, halfpage
ENVOUT
−30−20−100
LINE output level (dBV)
Fig.10 Envelope output; AF envelope (audio peak level).
5
output
voltage
4
(V)
3
2
1
0
−1
10
FMOUT left channel carrier amplitude (RMS value) (V)
Power mute; see Fig.12
Without countermeasures switching of the power supply
voltage (VCC; pin 35) or use of the built-in ‘passive
standby’ mode causes strong disturbances on the output
pins because of the rise or drop of the output’s DC
voltages. The TDA9615H includes three integrated mute
switches to block such disturbances and avoiding the need
of an external mute circuit. By connecting the power mute
switches behind the line and RFC output capacitors
pop-free line and RFC output signals are realized.
Power muting is active when control byte bit MUTE = 1.
Because this also is the POR default state, muting is
automatically activated when the power supply voltage is
switched on. The integrated mute switches (MUTEC,
MUTEL and MUTER; pins 13, 14 and 17) are closed,
forming a low impedance path to ground. Furthermore the
line and RFC outputs (RFCOUT, LINEL and LINER;
pins 12, 15 and 16) are current limited to 1 mA to achieve
good attenuation without the need for a series resistor
between output and mute switch. Although the decoder
outputs (DECL and DECR; pins 18 and 19) have no
integrated muting these are current limited also for use
with the integrated mute switches or to assist possible
external muting.
After the output DC voltage is settled the power mute
function can be deactivated by selecting MUTE = 0.
Now the mute switches are opened showing a high
impedance of 100 kΩ to ground and output current limiting
is deactivated. Note that the time needed for output DC
settling is proportional to the output capacitor value used;
with a 10 µF capacitor a safe mute time to use is 200 ms
(i.e. t
=C×20000). Using such controlled muting very
mute
good performance is achieved for power-up, power-down
and ‘passive standby’ mode switching.
At a sudden supply power loss however (e.g. mains power
plug pulled) there may be no time to activate the power
mute function via the I2C-bus. A power-down detector
however instantly activates the power mute function in
case the supply voltage falls below 7 V (auto-mute).
For proper muting supply voltage drop rate should not
exceed 1 V/10 ms.
handbook, full pagewidth
pins 12, 15 and 16
output signal
with power mute
pins 13, 14 and 17
(1) POR.
V
CC
auto-mute
(V
CC
bit MUTE
bit STBP
< 7 V)
(
power
off
(
1)
t
mute
active
operation
t
mute
passive
standby
t
mute
active
operation
t
mute
power off
(standby)
1)
Fig.12 Example of power mute control and auto-mute function.
t
mute
active
operation
auto-mute
power
off
MGK476
1997 Jun 1634
Page 35
Philips SemiconductorsPreliminary specification
Audio processor for VHS hi-fiTDA9615H
Do not set MUTE and change STBP at the same time;
to avoid output glitches power muting should precede the
switching of ‘passive standby’ mode. Power muting takes
The external resistor should have the following
dimensions: value = 39.0 kΩ±2%; temperature
coefficient = ±50 ppm/K.
up approximately 4 mA supply current, so to realize the
minimum power consumption of ‘passive standby’ mode
muting has to be deactivated. Note also the use of ‘passive
standby’ mode to initiate a controlled power-off switching.
resistor
I
ref
The external resistor at pin 28 defines internal reference
currents and determines temperature stability of the
circuits adjusted by the auto-calibration function.
Standard hi-fi audio level
Using the application circuit as proposed in Fig.6, the
standard FM deviation of 50 kHz equals a 1 kHz audio
signal of −8 dBV line output level (LOH = 0). A different
standard audio level can be selected by changing the
external filter components of the noise reduction at
pins 24 and 32 (EMPHL and EMPHR); standard audio
level changes proportional to the impedance of the
external de-emphasis filter; see Table 36.
Table 36 Standard audio levels; see application diagram of Fig.6
RFC AGC; see Fig.13
To avoid over modulation in the RF converter unit connected to RFCOUT (pin 12) an AGC function is incorporated,
limiting the maximum signal level at pin RFCOUT to −3 dBV.
handbook, halfpage
RFC output
(dBV)
−3
−3
line output (dBV)
MGK479
Fig.13 RF converter output AGC.
1997 Jun 1635
Page 36
Philips SemiconductorsPreliminary specification
Audio processor for VHS hi-fiTDA9615H
The RFC output can be muted by setting of bit RFCM = 1.
When applying this mute the AGC control is reset by
discharging the capacitor at pin 11 (RFCAGC).
Audio dubbing
TDA9615H includes unparalleled functionality supporting
the audio dubbing function of hi-fi video recorders. Audio
dubbing is a feature mode for recording of new sound
material on the linear audio track (i.e. normal sound) of an
existing recording. Audio dubbing can be used in two
different ways.
O
UTPUT MIX
A new, partly, recording is made on the linear audio track;
afterwards during ‘playback’ mode the new linear audio
and the original hi-fi sound are combined. This way
hi-fi stereo quality remains and linear audio is only partly
used e.g. for speech only (commentary track). However
there is no control over the original (hi-fi) sound.
‘Playback’ mode mixing of hi-fi and normal sound is
supported by the output select function modes ‘Mix-Left’,
‘Mix-Right’ and ‘Mix-Stereo’ (OSN, OSR and OSL of the
output byte) creating a fixed output signal of
1
⁄2hi-fi left +1⁄2normal.
I
NPUT MIX
A new, complete, recording is made on the linear audio
track; afterwards ‘playback’ mode uses linear audio sound
only. This way hi-fi stereo quality is lost but there is total
freedom in defining the new material. Furthermore this
way ‘playback’ mode is no longer restricted to hi-fi video
recorders with output mix option.
Selection ‘Dub Mix’ mode of the input select function,
when combined with selection ‘Volume’ mode of the
normal select function, changes the circuit into a mixing
desk. A new linear audio recording can be created mixing
together new and original sound. By use of the left and
right channel volume controls continuous control is offered
over amplitude and ratio mix of the AUX input signal (e.g.
a microphone input) and the original hi-fi ‘playback’ mode
sound.
This functionality is realized by internal connection of the
AUX input pair to the left channel volume control and by
internal connection of the hi-fi output signal pair to the right
channel volume control. For output and hi-fi selection the
‘Dub Mix’ mode uses, and partly overrules, the output
select function settings. Output select function modes
‘Mix-Left’, ‘Mix-Right’ and ‘Mix-Stereo’ make the normal
sound available at the line outputs for monitoring of the
‘Dub Mix’ mode recording.
Table 37 Input select function is set to ‘Dub Mix’ mode (IS2, IS1, IS0 = 101); note 1
OUTPUT SELECT
MODE
OSNOSROSL
DUB MIX OUTPUT
SELECTION
DUB MIX INPUT SELECTION
LEFT CHANNEL RIGHT CHANNEL
Mute000muteaux stereomute
Left001hi-fi leftaux stereohi-fi left
Right010hi-fi rightaux stereohi-fi right
Stereo011stereoaux stereostereo
Normal100normalaux stereonormal
Mix-Left101normalaux stereohi-fi left
Mix-Right110normalaux stereohi-fi right
Mix-Stereo111normalaux stereohi-fi stereo
Note
1. Modes shown in bold are the most used modes.
Output select function mode ‘Mix-Stereo’ is the setting
generally used for audio dubbing. In combination with
setting the normal select function to ‘Volume’ mode user
control over amplitude and ratio is offered for the AUX and
hi-fi signal as follows:(1⁄4AUXL +1⁄4AUXR) × volume left +
(1⁄4hi-fi left +1⁄4hi-fi right) × volume right.
Switching hi-fi to a mode other than ‘playback’ or selection
of output select function mode ‘Normal’ should be avoided;
using these settings a signal loop can be closed from
output to input possibly leading to audio oscillation. For the
same reason auto-normal switching is not active during
‘Dub Mix’ mode; in case no hi-fi input signal is detected the
hi-fi sound is muted.
1997 Jun 1636
Page 37
Philips SemiconductorsPreliminary specification
Audio processor for VHS hi-fiTDA9615H
Test modes; see Table 38
Special test modes are implemented for testing and evaluation purposes. These test modes are available via the power
byte TEST bit and selection is enabled via bits of the select byte.
Table 38 Test modes for evaluation purposes
TESTs4NIL3NIL2NIL1NIL0DESCRIPTION
0X
(1)
100001test 1: left channel FM carrier only (1.3 or 1.4 MHz);
100010test 2: right channel FM carrier only (1.7 or
100011test 3: left channel band-pass filter, HF AGC off;
100100test 4: right channel band-pass filter, HF AGC off;
100101test 5: HF AGC (via left channel band-pass filter);
100110test 6: HF AGC (via right channel band-pass filter);
111001test 25 (note 3)
111010test 26 (note 3)
(1)
X
(1)
X
(1)
X
(1)
X
standard operation
record mode
1.8 MHz); record mode
playback mode (test output = FMOUT)
playback mode (test output = FMOUT)
playback mode (test output = FMOUT)
playback mode (test output = FMOUT)
100111 to 111000product testing; not for evaluation; note 2
a: left channel FM modulator (left carrier only);
record mode (test input = line in left)
b: left and right channel noise reduction
(compressor); record mode (test output = line out)
c: left and right channel FM demodulator; playback
mode (test output = line out)
a: right channel FM modulator (right carrier only);
record mode (test input = line in right)
b: left and right channel audio low-pass filter;
record mode (test input = line in, test output = line
out)
c: left and right channel noise reduction
(expander); playback mode (test input = line in);
note 4
Notes
1. X = don’t care.
2. Calibration may be lost when selecting product testing modes.
3. Audio output level for tests 25b and 25c (test output = line out) is typical −6.5 dBV (with input = −8 dBV or FM
deviation = 50 kHz; LOH = 0). Audio input level for tests 25a, 26a and 26c (test input = line in) is typical −6.5 dBV
(for output = −8 dBV or FM deviation = 50 kHz; hi-fi volume = −3 dB). The test outputs and test inputs used for
tests 25 and 26 directly connect to internal signal lines. Signals found here are not compensated for temperature or
tolerance spread, level measurements therefore can be used relative only. Absolute values are no indication of
overall performance.
4. Test 26c (expander test) requires the auto-normal function to be deactivated (i.e. carrier available at FMIN pin).
1997 Jun 1637
Page 38
Philips SemiconductorsPreliminary specification
Audio processor for VHS hi-fiTDA9615H
PACKAGE OUTLINE
QFP44: plastic quad flat package; 44 leads (lead length 1.3 mm); body 10 x 10 x 1.75 mm
c
y
X
A
3323
34
pin 1 index
44
1
22
Z
E
e
H
E
E
w M
b
p
12
11
A
2
A
A
1
detail X
SOT307-2
Q
(A )
3
θ
L
p
L
w M
b
e
DIMENSIONS (mm are the original dimensions)
mm
OUTLINE
VERSION
SOT307-2
A
max.
2.10
0.25
0.05
1.85
1.65
UNITA1A2A3b
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
p
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0.20
0.25
0.14
0.25
IEC JEDEC EIAJ
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02.55 mm
scale
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REFERENCES
eH
10.1
9.9
12.9
0.81.3
12.3
1997 Jun 1638
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12.9
12.3
0.95
0.55
0.85
0.75
0.150.10.15
EUROPEAN
PROJECTION
Z
D
1.2
0.8
ISSUE DATE
92-11-17
95-02-04
E
1.2
0.8
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10
o
0
Page 39
Philips SemiconductorsPreliminary specification
Audio processor for VHS hi-fiTDA9615H
SOLDERING
Introduction
There is no soldering method that is ideal for all IC
packages. Wave soldering is often preferred when
through-hole and surface mounted components are mixed
on one printed-circuit board. However, wave soldering is
not always suitable for surface mounted ICs, or for
printed-circuits with high population densities. In these
situations reflow soldering is often used.
This text gives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
“IC Package Databook”
our
Reflow soldering
Reflow soldering techniques are suitable for all QFP
packages.
The choice of heating method may be influenced by larger
plastic QFP packages (44 leads, or more). If infrared or
vapour phase heating is used and the large packages are
not absolutely dry (less than 0.1% moisture content by
weight), vaporization of the small amount of moisture in
them can cause cracking of the plastic body. For more
information, refer to the Drypack chapter in our
Reference Handbook”
Reflow soldering requires solder paste (a suspension of
fine solder particles, flux and binding agent) to be applied
to the printed-circuit board by screen printing, stencilling or
pressure-syringe dispensing before package placement.
Several techniques exist for reflowing; for example,
thermal conduction by heated belt. Dwell times vary
between 50 and 300 seconds depending on heating
method. Typical reflow temperatures range from
215 to 250 °C.
Preheating is necessary to dry the paste and evaporate
the binding agent. Preheating duration: 45 minutes at
45 °C.
(order code 9398 652 90011).
“Quality
(order code 9397 750 00192).
Wave soldering
Wave soldering is not recommended for QFP packages.
This is because of the likelihood of solder bridging due to
closely-spaced leads and the possibility of incomplete
solder penetration in multi-lead devices.
If wave soldering cannot be avoided, the following
conditions must be observed:
• A double-wave (a turbulent wave with high upward
pressure followed by a smooth laminar wave)
soldering technique should be used.
• The footprint must be at an angle of 45° to the board
direction and must incorporate solder thieves
downstream and at the side corners.
Even with these conditions, do not consider wave
soldering the following packages: QFP52 (SOT379-1),
QFP100 (SOT317-1), QFP100 (SOT317-2),
QFP100 (SOT382-1) or QFP160 (SOT322-1).
During placement and before soldering, the package must
be fixed with a droplet of adhesive. The adhesive can be
applied by screen printing, pin transfer or syringe
dispensing. The package can be soldered after the
adhesive is cured.
Maximum permissible solder temperature is 260 °C, and
maximum duration of package immersion in solder is
10 seconds, if cooled to less than 150 °C within
6 seconds. Typical dwell time is 4 seconds at 250 °C.
A mildly-activated flux will eliminate the need for removal
of corrosive residues in most applications.
Repairing soldered joints
Fix the component by first soldering two diagonally-
opposite end leads. Use only a low voltage soldering iron
(less than 24 V) applied to the flat part of the lead. Contact
time must be limited to 10 seconds at up to 300 °C. When
using a dedicated tool, all other leads can be soldered in
one operation within 2 to 5 seconds between
270 and 320 °C.
1997 Jun 1639
Page 40
Philips SemiconductorsPreliminary specification
Audio processor for VHS hi-fiTDA9615H
DEFINITIONS
Data sheet status
Objective specificationThis data sheet contains target or goal specifications for product development.
Preliminary specificationThis data sheet contains preliminary data; supplementary data may be published later.
Product specificationThis data sheet contains final product specifications.
Limiting values
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information
Where application information is given, it is advisory and does not form part of the specification.
LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.
2
PURCHASE OF PHILIPS I
C COMPONENTS
2
Purchase of Philips I
components in the I2C system provided the system conforms to the I2C specification defined by
Philips. This specification can be ordered using the code 9398 393 40011.
C components conveys a license under the Philips’ I2C patent to use the
1997 Jun 1640
Page 41
Philips SemiconductorsPreliminary specification
Audio processor for VHS hi-fiTDA9615H
NOTES
1997 Jun 1641
Page 42
Philips SemiconductorsPreliminary specification
Audio processor for VHS hi-fiTDA9615H
NOTES
1997 Jun 1642
Page 43
Philips SemiconductorsPreliminary specification
Audio processor for VHS hi-fiTDA9615H
NOTES
1997 Jun 1643
Page 44
Philips Semiconductors – a worldwide company
Argentina: see South America
Australia: 34 Waterloo Road, NORTH RYDE, NSW 2113,
United States: 811 East Arques Avenue, SUNNYVALE, CA94088-3409,
Tel. +1800 2347381
Uruguay: see South America
Vietnam: see Singapore
Yugoslavia: PHILIPS, Trg N. Pasica 5/v, 11000 BEOGRAD,
Tel. +38111 625344, Fax.+38111 635777
For all other countries apply to: Philips Semiconductors, Marketing & Sales Communications,
Building BE-p, P.O.Box 218, 5600MD EINDHOVEN, TheNetherlands, Fax.+31 4027 24825
The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed
without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license
under patent- or other industrial or intellectual property rights.
Internet: http://www.semiconductors.philips.com
Printed in The Netherlands547047/1200/01/pp44 Date of release: 1997 Jun 16Document order number: 9397 75001744
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