Page 1
Dolby∗B-C Type Noise Reduction System with Built-in S type Switch
Description
The CXA1563M/S is a bipolar IC incorporating
dual channel Dolby B-C type noise reduction (NR)
system and Dolby S type switch. Dolby B-C-S type
stereo system is completed by using this IC in
conjunction with two CXA1417S or two CXA1417Q.
A reduction in the number of external parts and
small package have been achived due to the fact
that the spectral skewing circuits are all on-chip.
Features
• Few external parts
• Spectral skewing circuit are on-chip
• NR ON/OFF, REC/PB, MPX filter ON/OFF,
Dolby S type switches
• Small package (28-pin SOP, 28-pin SDIP)
• Low current consumption 13mA Typ.
(power supply ±6V)
• Dual channel processors
CXA1563M/S
CXA1563M
28 pin SOP (Plastic)
CXA1563S
28 pin SDIP (Plastic)
Structure
Bipolar silicon monolithic IC
Absolute Maximum Ratings
• Supply voltage VCC 17 V
• Operating temperature Topr –40 to +85 °C
• Storage temperature Tstg –65 to +150 °C
• Allowable power dissipation PD 600 (SOP) mW
1200 (SDIP) mW
∗
This IC is available only to the licensees of Dolby Laboratories Licensing Corporation from whom licensing and applications
information may be obtained.
∗
"Dolby" and the double D symbols are trademarks of Dolby Laboratories Licensing Corporation.
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
– 1 –
E93506C5X-ST
Page 2
CXA1563M/S
P3 MODE
P14
RECOUT1
C16
C15
C14
1µ
68n
100n
VCC
P2
CC
V
15
MODE
16
N.C.
17
RECOUT1
18
TCL1
19
TCH1
20
CC
V
C1
10µ
LDET
Mode
Control
C2
10µ
VEE
14
13
11
10
9
EE
V
SSW
NRSW
TCL2
TCH2
VEE
P1
1µ
C26
RECOUT2
68n
C25
C24
100n
P5
P4
P24
NRSW
SSW
RECOUT2
P13 LINEOUT1
C13
R12
6.8k
S-type
Processor
1µ
R11
MPX
Filter
(CXA1417)
3.3k
1µ
C12
1µ
C11
SIN1
21
LINEOUT1
22
N.C.
23
MPXOUT1
24
MPXIN1
25
LINEIN1
26
PBIN1
27
VCT
28
SSK REC AMP
10dB
HLS HDET LLS
MOA
HLS HDET LDET LLS
MOA
IREF
SSK REC AMP
10dB
8
7
6
5
4
3
2
1 12
SIN2
N.C.
PBIN2
IREF
LINEOUT2
R21
MPXOUT2
MPXIN2
1µ
C22
LINEIN2
1µ
C21
R1
20k
3.3k
MPX
S-type
Filter
R22
Processor
(CXA1417)
P23
1µ
C23
6.8k
LINEOUT2
P12
P11
PBIN1
LINEIN1
Block Diagram and Pin Configuration
– 2 –
P22
PBIN2
P21
LINEIN2
Page 3
Pin Description and Equivalent Circuit
CXA1563M/S
Pin
No.
1
2,
27
Symbol Z: Imp VDC (V) Equivalent circuit Description
IREF 0 VEE + 1.25V
PB IN
40K VCT
4,
MPX IN
25
40k
V
CC
VEE + 1.25V
VEE
VCC
VCT
VEE
Reference current pin
for setting internal filter
cut-off frequency
Playback input pin
Reference level
= –30dBm
Buffer amplifier input
pin to drive multiplex
filter
Reference level
= –19dBm
3,
LINE IN 62K VCT
26
5,
MPX OUT 0 VCT
24
62k
500
5008.8k
VCC
VCT
V
VCC
VEE
Recording input pin
Reference level
= –25dBm
EE
Buffer amplifier output
pin to drive multiplex
filter
Reference level
= –21dBm
– 3 –
Page 4
CXA1563M/S
Pin
No.
7,
22
8,
21
Symbol Z: Imp VDC (V) Equivalent circuit Description
VCC
200
LINE OUT 0 VCT Line output pin
200
VEE
VCC
SIN
——
Dolby S type
connecting pin
9,
TCH — VEE + 0.4V
20
10,
TCL — VEE + 0.4V
19
13k 36k
330k
13.5k
480k
VEE
V
CC
VEE
V
VEE
Time constant
connecting pin for HLS
detector
CC
Time constant
connecting pin for LLS
detector
– 4 –
Page 5
CXA1563M/S
Pin
No.
11,
18
12 SSW
Symbol Z: Imp VDC (V) Equivalent circuit Description
REC OUT 0 VCT
——
200
200
6k 6k
40µA
VCC
VEE
V
CC
VCT
Recording output pin
Reference level
= –6dBm
Dolby S type switching
pin
H or Open: B-C type
L : S type
50µA
13
NRSW — —
VEE VEE
14
VCC VCC VCC
15
16
MODE — —
22k
50k
50µA
22k
50k
V
EE
VCC
NR control pin
H: C type
M: B type
L: NR OFF
VEE
Dual power supply: VEE
Single power supply:
GND pin
VCC
MODE control pin
H: REC (Filter ON)
M: REC (Filter OFF)
L: PB
VCT 0 VCT
28
VEE
Dual power supply: GND
Single power supply:
VCC/2
– 5 –
Page 6
Electrical Characteristics
(Ta = 25°C, Dolby level: –6dBm (= 388mVrms) at REC OUT, VCC = 12V (single power supply))
CXA1563M/S
Characteristics
Operating voltage
Current consumption
LINE OUT level
LINE IN level
PB IN level
MPX amplifier gain
Encode characteristics
B type boost
(1)
(2)
(3)
(4)
C type boost
(1)
(2)
(3)
(4)
(5)
(6)
Symbol
Vopr
ICC
Vlout
Vlin
Vpin
Gmpx
B-R-1
B-R-2
B-R-3
B-R-4
C-R-1
C-R-2
C-R-3
C-R-4
C-R-5
C-R-6
Measurement conditions
NR
—
OFF
OFF
OFF
OFF
OFF
B
B
B
B
C
C
C
C
C
C
f (Hz)
—
—
1k
1k
1k
1k
500
5k
10k
10k
500
500
2k
2k
5k
10k
R/P
—
REC
REC
REC
PB
MPX
REC
REC
REC
REC
REC
REC
REC
REC
REC
REC
∗
Other conditions
No Signal
–25dB
–25dB
–40dB
–0dB
–60dB
–25dB
–60dB
–25dB
–25dB
–0dB
Min. Typ. Max.
7.2
8.0
–7.0
–27
–32
9.0
1.4
3.9
9.7
–1.1
14.2
7.2
18.7
5.4
3.5
–5.5
—
13.0
–6.0
–25
–30
10.0
2.9
5.4
10.4
0.4
16.2
9.2
20.7
7.4
5.5
–3.5
16
18.0
–5.0
–23
–28
11.0
4.4
6.9
11.4
1.9
18.2
11.2
22.7
9.4
7.5
–1.5
Unit
V
mA
dBm
dBm
dBm
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Signal handling
Vomax
REC
OFF
1k
THD = 1%
13.5
Total harmonic distortion
1) NR OFF
2) B
3) C
S/N
REC-PB
PB-REC
REC ch to ch
REC OUT offset
Voltage
(OFF-C type)
∗
0dB means the level which provides the Dolby level to recording output when NR is off.
THD (OFF)
THD (B)
THD (C)
SN
(CCIR)
CT-1
CT-2
CT-3
Voff
REC
REC
REC
REC
PB
REC
REC
REC
OFF
B
C
C
OFF
OFF
OFF
OFF
↓
C
1k
1k
1k
—
1k
1k
1k
—
+10dB
+10dB
+10dB
Rg = 5kΩ
(CCIR/ARM)
0dB
0dB
0dB
—
—
—
60
—
—
—
–100
19.0
0.02
0.03
0.05
64
–80
–87
–73
0
—
0.1
0.1
0.2
—
–70
–70
–65
100
dB
%
%
%
dB
dB
dB
dB
mV
– 6 –
Page 7
CC
V
CXA1563M/S
S1_1
C16
DC Volt
S2_1
1µ
Meter
VMODE
68n
C15
C14
100n
15
16
17
18
19
20
CC
V
N.C.
TCL1
MODE
TCH1
A
RECOUT1
C1
EE
V
14
NRSW
13
SSW
RECOUT2
11
TCL2
10
TCH2
9
100µ
VSSW
C25
C24
68n
100n
CCIR/ARM
S2_2 S3
S1_2
VNRSW
1µ
C26
Audio
Analyzer
Filter
S12
R12
6.8k
S11
C13
R11
C12
C11
C2
1µ
3.3k
1µ
1µ
100µ
21
22
23
24
25
26
27
28
SIN1
N.C.
PBIN1
VCT
LINEOUT1
MPXOUT1
MPXIN1
LINEIN1
SIN2
8
LINEOUT2
7
N.C.
6
MPXOUT2
5
MPXIN2
4
LINEIN2
3
PBIN2
2
IREF
1 12
C23
R21
C22
C21
R1
1µ
3.3k
1µ
1µ
20k
S21
R22
6.8k
S22
Electrical Characteristics Measurement Circuit
Audio
– 7 –
SG
Page 8
CXA1563M/S
LINEOUT1
P13
RECOUT1
P14
OFF
MPX
PB
CC
V
P2
C16
C15
C14
ON
MPX
1µ
68n
(10%)
100n
(10%)
15
16
17
18
19
20
C1
CC
10µ
V
N.C.
TCL1
MODE
TCH1
RECOUT1
C2
10µ
V
EE
14
NRSW
13
SSW
RECOUT2
11
TCL2
10
TCH2
9
C
OFF
C26
C25
C24
B
1µ
68n
(10%)
100n
(10%)
S B/C
EE
V
P1
RECOUT2
P24
LINEOUT2
P23
Application circuits shown are typical examples illustrating the operation of the devices.
Sony cannot assume responsibility for any problems arising out of the use of these
circuits or for any infringement of third party patent and other right due to same.
C13
1µ
R12
4
3
2
1
6.8k
(5%)
Stype
CXA1417
Encoder Unit
MPX
Filter
SIN1
7
21
6
N.C.
PBIN1
VCT
LINEOUT1
CXA1563M/S
MPXOUT1
MPXIN1
LINEIN1
5
22
23
R11
3.3k
(5%)
24
25
1µ
C12
2627
1µ
C11
28
SIN2
8
LINEOUT2
7
N.C.
6
MPXOUT2
5
MPXIN2
4
LINEIN2
3
PBIN2
2
IREF
1 12
R1
R21
C22
C21
20k
3.3k
1µ
1µ
(2%)
(5%)
7
6
5
CXA1417
MPX
Filter
4
3
Stype
2
Encoder Unit
1
R22
6.8k
(5%)
C23
1µ
P12
P11
PBIN1
LINEIN1
Application Circuit
Switchable Processor with Dual Power Supply
– 8 –
P22
PBIN2
P21
LINEIN2
Note)Refer to the specifications of the CXA1417 for the S type encoder unit circuit diagram.
Resistor and capacitor tolerances are ±10% and ±20% respectively, unless otherwise specified.
Page 9
CXA1563M/S
LINEOUT1
P13
RECOUT1
P14
OFF
MPX
P2 VCC
PB
C16
C15
C14
ON
MPX
1µ
68n
(10%)
100n
(10%)
15
16
17
18
19
20
CC
V
N.C.
TCL1
C1
10µ
MODE
TCH1
RECOUT1
C2
47µ
V
EE
14
NRSW
13
SSW
RECOUT2
11
TCL2
10
TCH2
9
C
OFF
C26
C25
C24
B
1µ
68n
(10%)
100n
(10%)
S B/C
P1 VEE
RECOUT2
P24
LINEOUT2
P23
Application circuits shown are typical examples illustrating the operation of the devices.
Sony cannot assume responsibility for any problems arising out of the use of these
circuits or for any infringement of third party patent and other right due to same.
C13
1µ
R12
4
3
2
1
6.8k
(5%)
Stype
CXA1417
Encoder Unit
MPX
Filter
SIN1
7
6
5
R11
3.3k
(5%)
1µ
C12
1µ
C11
21
22
23
24
25
26
27
28
N.C.
PBIN1
VCT
LINEOUT1
CXA1563M/S
MPXOUT1
MPXIN1
LINEIN1
SIN2
8
LINEOUT2
7
N.C.
6
MPXOUT2
5
MPXIN2
4
LINEIN2
3
PBIN2
2
IREF
1 12
R1
R21
C22
C21
20k
3.3k
1µ
1µ
(2%)
(5%)
7
6
5
CXA1417
MPX
Filter
4
3
2
Stype
Encoder Unit
1
R22
6.8k
(5%)
C23
1µ
P12
P11
PBIN1
LINEIN1
Switch Processor with Single Power Supply
– 9 –
P22
PBIN2
P21
LINEIN2
Note)Refer to the specifications of the CXA1417 for the S type encoder unit circuit diagram.
Resistor and capacitor tolerances are ±10% and ±20% respectively, unless otherwise specified.
Page 10
CXA1563M/S
Application Note
The CXA1563M/S is a dual channel Dolby B-C type NR IC with a built-in S type (CXA1417S/Q) switch. By
using the CXA1563M/S in conjunction with two sets of the CXA1417S/Q encoder unit, a stereo Dolby B-C-S
type NR system can be achieved.
1) Power Supply
The CXA1563M/S is designed to operate on either single or dual power supply.
For dual power supply, connect VCT (Pin 28) to GND, and VEE (Pin 14) to the negative power supply.
For single power supply, connect VEE (Pin 14) to GND. Vcc/2, generated from the internal circuit, is output to
VCT (Pin 28). Connect a by-pass capacitor between this pin and GND.
The operating voltage range is ±3.5 to ±8.0V (7.0 to 16V), which satisfies the signal handling of 12dB
specified by the Dolby Laboratories.
2) Supply Voltage of the CXA1417S/Q and the CXA1563M/S
(1) When both have split power supply
Set within the respective specified ranges.
CXA1417S/Q: ±AV
CXA1563M/S: ±BV
(2) When both have single power supply
Set at the same potential with the range specified for the CXA1417S/Q (9 to 13V).
CXA1417S/Q: AV
CXA1563M/S: BV
(3) Single and dual power supplies can not be used together.
3) Operation Mode Control
The CXA1563M/S has built-in electronic switches. The operations are controlled by the DC voltages of SSW
(Pin 12), NRSW (Pin 13) and MODE (Pin 16) control pins. Table 1 shows the switching truth tables.
For single power supply, VH, VM, and VL correspond to Vcc, Vcc/2 and GND, respectively.
For dual power supply, VH, VM and VL correspond to Vcc, GND and VEE, respectively.
Refer to "threshold" on the characteristics graph for the thresholds of the control voltages. NRSW (Pin 13)
and MODE (Pin 16) control pins are connected to VCT via a 50kΩ resistor, so when the pin is open, VM
condition results. SSW (Pin 12) control pin is of PNP base input, so the pin can be used as VH when it is
open.
VH VM VL
SSW
NRSW
MODE
B-C type
C type
MPX ON
REC
(Encode)
—
B type
MPX OFF
REC
(Encode)
S type
NR OFF
PB
(Decode)
Table 1
SSW is taken precedence over NRSW, and NRSW is invalid when SSW is at Low.
– 10 –
Page 11
CXA1563M/S
4) Reference level
The CXA1563M/S Dolby level is –6dBm (388mVrms), and is measured at the recording output pin (REC
OUT) in the NR OFF mode. The reference level of the recording input pin (LINE IN), playback input pin (PB
IN) and line output pin (LINE OUT) are defined as the levels which provide Dolby level at the recording output
pin in NR OFF mode.
5) MPX Filter
The CXA1563M/S provides an MPX (FM multiplex) filter ON/OFF function.
Connect the MPX filter between MPX IN (Pins 4 and 21) and MPX OUT (Pins 5 and 20). In MPX ON mode,
the line input signal is fed to the NR processor via the MPX buffer amplifier and MPX filter. In MPX OFF
mode, the signal bypasses the buffer amplifier and filter, and is fed directly to the NR processor. The MPX
buffer amplifier gain is 10dB. The gain from LINE IN to LINE OUT is 19dB, and from MPX IN to LINE OUT it
is 13dB, for a deviation of 6dB. This means that if a filter with insertion loss of 4dB is used, there is no
fluctuation between MPX ON and MPX OFF.
6) Notes on Operation
If the CXA1563M/S is used without being connected to the CXA1417S/Q encoder unit, SIN (Pins 8 and 21)
must be connected to GND for dual power supply, and to VCT for single power supply. There is a risk of
misoperation if the SIN pins are left open during use.
– 11 –
Page 12
Example of Representive Characteristics
CXA1563M/S
Quiescent current consumption vs. Supply voltage
Encode Mode
Single power supply
15
14
13
12
11
10
— Quiescent current consumption [mA]
CC
I
8
4 6 8 10 12 14
CC — Supply voltage [V]
V
B type
NR OFF
C type
16
B type encode characteristics
VCC = ±6V
12
0dB = Dolby Level
10
8
–40dB
–30dB
Current consumption vs. Input level
Encode Mode
16
VCC = ±6V
0dB = Dolby Level
15
14
13
12
11
— Current consumption [mA]
CC
I
10
–12 –8 –4 0 4 8
Input level [dB]
C type encode characteristics
VCC = ±6V
24
0dB = Dolby Level
20
16
Bf = 10k
NR OFF
Bf = 1k
Cf = 10k
Cf = 1k
12
–60dB
–50dB
6
4
Encode boost [dB]
2
0
100 200 500 1k 2k 5k
Frequency [Hz]
Signal handling
Encode Mode
f = 1kHz
THD = 1%
20
0dB = Dolby Level
10
Signal handling [dB]
0
NR OFF
C type
–20dB
–10dB
0dB
10k
20k
12
8
Encode boost [dB]
4
0
100 200 500 1k 2k 5k
Frequency [Hz]
Load characteristics
Encode Mode
16
VCC = ±6V
THD = 1%
14
f = 1kHz
NR OFF
12
10
8
6
Maximum output level [dBm]
4
LINE OUT
0dB
REC OUT
–40dB
–30dB
–20dB
–10dB
10k
20k
4 8 10 12 14 16
6
VCC – VEE — Supply voltage [V]
200 500 1k 2k 5k 10k
Load resistance [Ω]
– 12 –
Page 13
CXA1563M/S
NR OFF total harmonic distortion-1
Encode Mode
VCC = ±6V
0dB = Dolby Level
0.1
f = 100kHz
0.01
Total harmonic distortion [%]
–4
048121620
Output level [dB]
B type total harmonic distortion-1
Encode Mode
VCC = ±6V
0dB = Dolby Level
0.1
f = 100Hz
f = 10kHz
f = 1kHz
NR OFF total harmonic distortion-2
Encode Mode
f = 1kHz
0dB = Dolby Level
0.1
VCC = ±3.5V
0.01
Total harmonic distortion [%]
–4
0 4 8 12 16 20
Output level [dB]
B type total harmonic distortion-2
Encode Mode
f = 1kHz
0dB = Dolby Level
0.1
VCC = ±3.5V
VCC = ±8.0V
f = 1kHz
0.01
Total harmonic distortion [%]
f = 10kHz
–4
048121620
Output level [dB]
C type total harmonic distortion-1
Encode Mode
VCC = ±6V
0dB = Dolby Level
1.0
0.1
Total harmonic distortion [%]
0.01
–4
f = 100Hz
f = 1kHz
048121620
Output level [dB]
f = 10kHz
0.01
Total harmonic distortion [%]
–4
0 4 8 12 16 20
Output level [dB]
C type total harmonic distortion-2
Encode Mode
f = 1kHz
0dB = Dolby Level
1.0
VCC = ±3.5V
0.01
Total harmonic distortion [%]
–4
0 4 8 12 16 20
Output level [dB]
VCC = ±8.0V
VCC = ±8.0V
– 13 –
Page 14
CXA1563M/S
VCC = ±6V
–40
Input = ±10dB
Refer to Dolby Level
NR OFF
–50
–60
–70
–80
Cross talk [dB]
–90
–100
100
14
Cross talk
PB ch to ch
REC ch to ch
REC to PB
PB to REC
200 500 1k 2k 5k 10k
Frequency [Hz]
MODE control threshold
VCC
NR control threshold
14
12
10
8
6
— NR control voltage [V]
4
CN
V
2
0
4
6 8 10 12 14 16
VCC — Supply voltage [V]
S-type switch control threshold
14
VCC
C type
VCC
2
B type
NR OFF
VCC
12
10
8
6
4
— MODE control voltage [V]
CM
V
2
0
4
6 8 10 12 14 16
VCC — Supply voltage [V]
MPX ON
PB
VCC
2
MPX OFF
12
10
8
6
4
— S type switch control voltage [V]
CS
2
V
0
4
6 8 10 12 14 16
VCC — Supply voltage [V]
B-C type
VCC
2
S type
– 14 –
Page 15
Package Outline Unit: mm
CXA1563M
CXA1563M/S
28PIN SOP (PLASTIC) 375mil
CXA1563S
1
SONY CODE
EIAJ CODE
JEDEC CODE
+ 0.4
18.8 – 0.1
0.45 ± 0.1
SOP-28P-L04
∗SOP028-P-0375-D
1528
14
M
± 0.12
PACKAGE STRUCTURE
PACKAGE MATERIAL
LEAD TREATMENT
LEAD MATERIAL
PACKAGE WEIGHT
1.27
+ 0.3
7.6 – 0.1
10.3 ± 0.4
2.3 – 0.15
9.3
+ 0.1
0.2 – 0.05
EPOXY / PHENOL RESIN
SOLDER PLATING
42 ALLOY
0.7g
+ 0.4
+ 0.2
0.1 – 0.05
0.5 ± 0.2
0.15
28PIN SDIP (PLASTIC) 400mil
+ 0.4
26.9 – 0.1
28 15
– 0.1
+ 0.3
10.16
8.5
114
1.778
– 0.1
+ 0.4
0.5 MIN
3.7
SONY CODE
EIAJ CODE
JEDEC CODE
0.5 ± 0.1
0.9 ± 0.15
SDIP-28P-01
SDIP028-P-0400-A
3.0 MIN
PACKAGE STRUCTURE
PACKAGE MATERIAL
LEAD TREATMENT
LEAD MATERIAL
PACKAGE WEIGHT
– 0.05
+ 0.1
0.25
0° to 15°
EPOXY RESIN
SOLDER PLATING
COPPER / 42 ALLOY
1.7g
– 15 –
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