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TK15329MTL
Datasheet (TOKO)
16 pgs214.73 Kb0

Datasheet TK15329MTL Datasheet (TOKO)

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Page 1
TK15329
Audio Analog Switch
FEATURES
■ Wide Operating Voltage Range (2 to 14 V)
■ Low Distortion (typ. 0.004%)
■ Wide Dynamic Range (typ. 6 V
P-P
)
■ Low Switching Noise (typ. 3 mV)
■ Output Parallel Connection Possible
DESCRIPTION
The TK15329M is an Analog Switch IC that was developed for audio frequency. The function is to select one output from two inputs and has a floating position too. The channel can be changed by two control levels and the device includes two circuits. The TK15329M has a mono-power supply and the input bias is a supply type from outside. Because the distortion is very low, the TK15329M fits various signals switching. It is best suited for Hi-Fi devices. Operating voltage is wide, the circuit plan is simple. The TK15329M is available in a small plastic surface mount package (SSOP-12).
APPLICATIONS
■ Audio Systems
■ Radio Cassettes
1ch-in 2ch-in
TK15329
V
CC
Bch
OUT
Ach
1KEY
NC
GND Bch
11
OUT
10
9
Ach 2 KEY
8
NC
7
BLOCK DIAGRAM
V
CC
1 ch out
2 ch out
1KEY
2KEY
GND
ORDERING INFORMATION
TK15329M
Tape/Reel Code
TAPE/REEL CODE
TL: Tape Left
1ch-in
2ch-in
Ach
Bch
Ach
Bch
+
-
+
-
+
-
+
-
Logic
June 1999 TOKO, Inc. Page 1
Page 2
TK15329
Logic
Input Key
ABSOLUTE MAXIMUM RATINGS
Supply Voltage ......................................................... 15 V
Power Dissipation (Note 5) ................................ 350 mW
Storage Temperature Range ................... -55 to +150 °C
ANALOG SWITCH SECTION
Signal Input Voltage ........................ -0.3 V to VCC + 0.3 V
Signal Output Current ............................................. 3 mA
Operating Temperature Range ...................-20 to +75 °C
CONTROL SECTION
Input Voltage ................................... -0.3 V to VCC + 0.3 V
Operating Voltage Range................................. 2 to 14 V
Maximum Input Frequency..................................100 kHz
TK15329M ELECTRICAL CHARACTERISTICS
Test conditions: V
LOBMYSRETEMARAPSNOITIDNOCTSETNIMPYTXAMSTINU
I
CC
V
LI
V
HI
Z
NI
DHTnoitrotsiDcinomraHlatoTV
N
L
OSInoitalosI
= 8.0 V, T
CC
= 25 °C, unless otherwise specified.
A
tnerruCylppuS 5.35.5Am
NOITCESLORTNOCYEK
leveLwoLegatloVtupnI1etoN3.0-8.0+V
leveLhgiHegatloVtupnI8.1V
ecnadepmItupnI 05kΩ
NOITCESHCTIWSGOLANA
NI
esioNlaudiseR2etoN01smrVµ
V
NI
3etoN
3.0+V
CC
zHk1=f,smrV1=300.0600.0%
,zHk01=F,smrV1=
57-Bd
PESnoitarapeS
V
NI
3etoN
,zHk01=f,smrV1=
08-Bd
NYDleveLlangiStupnImumixaM%1.0=DHT,zHk1=f0.2smrV
AVGniaGegatloVzHk02~=f0Bd
V
tnec
∆V
tnec
I
NI
Z
TUO
Note 1: The KEY input equivalent circuit is shown in Figure A. When the control pin is open, it is outputted at low level. The TK15329M is controlled
by two values and the function table is described in the block diagram.
Note 2: The specification means a value as measurement-input terminal connects to ground
through a capacitor.
Note 3: ISO is a cross talk between A channel and B channel, SEP is a cross talk between 1
channel and 2 channel. The specification means a value as measurement-input termianl connects to ground through 10 kΩ resistor and capacitor.
Note 4: The standard application of the TK15329M is the direct connecting. In case of the
capacitor connecting, the to supply a bias voltage from outside is unnecessary.
Note 5: Power dissipation is 350 mW when mounted as recommended. Derate at 3.0 mW/
°C for operation above 25°C.
egatloV
ecnereffiD
lanimreTtuptuO-tupnI
egatloVlanimreTtuptuO
tnerruCsaiBtupnI4etoN5.0Aµ
ecnadepmItuptuOecnadepmICD02
V
TUO
edistuomorf
egatlovylppuS=
V
2.0-V
TUO
V
TUO
TUO
lennahcemasneewteB37Vm
V
CC
Input
Figure A
2.0+V
Ω
Figure B
Page 2 June 1999 TOKO, Inc.
Page 3
TEST CIRCUITS AND METHODS
V
CC
TK15329
33 µF
+
SW6
SW7
1 kHz
1 Vrms
or
2 Vrms
SW9
~
10 kHz 1 Vrms
~
SW8
10 kΩ
1: The above condition represents 1ch. 2: The above conditions distortion rate of 1-Ach and dynamic range measurement. 3: SW5 is for residual noise measurement. 4: SW8 is for cross talk (ISO or SEP) measurement.
SUPPLY CURRENT (FIGURE 1)
SW5
VCC / 2
10 µF
SW3
SW4
+
10 µF
+
50 kΩ 50 kΩ
SW2
V
~
SW1
LH
V
THD
_
CC
LH
AV
This current is a consumption current with a nonloading condition.
50 K
50 K
1) Bias supply to Pin 2, 4, 9, 11. (This condition is the same with other measurements, omitted from the next for simplicity)
50 K
50 K
2) Connect Pin 5 to VCC, Pin 8 is inthe open condition or low level.
3) Measure the inflow current to Pin 1 from VCC. This current is the supply current.
VCC/2
Figure 1
June 1999 TOKO, Inc. Page 3
Page 4
TK15329
TEST CIRCUITS AND METHODS (CONT.)
CONTROL LOW/HIGH LEVEL (FIGURE 2)
This level is to measure the threshold level.
1) Input, the VCC to Pin 1. (This condition is the same with other measurements, omitted from the next for simplicity)
2) Input to Pin 4 with sine wave (f = 1 kHz, VIN = 1 Vrms).
3) Connect an oscilloscope to Pin 3.
4) Pin 8 is in the open condition or low level. Elevate Pin 5 voltage gradually from 0 V until the sine wave appears at the oscilloscope. This voltage is the threshold level, when the wave appears.
V
CC
++
V
CC
+
Figure 3
~
Cont.
Figure 2
CONTROL INPUT IMPEDANCE (FIGURE 3)
This is the input resistance of control terminals.
1) Measure the inflow current from V
to Pin 5.
CC
2) Calculate: IMP = VCC / Inflow Current This resistance is the input impedance.
TOTAL HARMONIC DISTORTION (FIGURE 4)
Use the lower distortion oscillator for this measurement
because distortion of the TK15329 is very low.
1) Connect VCC to Pin 5, Pin 8 is in the open condition or low
level.
2) Connect a distortion analyzer to Pin 3.
3) Input the sine wave (1 kHz, 1 Vrms) to Pin 4.
4) Measure the distortion of Pin 3. This value is the
distortion of 1-Ach.
5) Next, reverse conditions at Pin 5 and Pin 8.
6) Input the same sine wave to Pin 2.
7) Measure in the same way. This value is the distortion
of 1-Bch.
Page 4 June 1999 TOKO, Inc.
Page 5
TK15329
TEST CIRCUITS AND METHODS (CONT.)
V
V
CC
CC
++
Figure 4
VOLTAGE GAIN (FIGURE 5)
This is the output level against input level.
1) Connect VCC to Pin 5, Pin 8 is in the open condition or low level.
2) Connect AC volt meters to Pin 4 and Pin 3. (Using the same type meter is best)
3) Input a sine wave (f = max. 20 kHz, 1 Vrms) to Pin 4.
4) Measure the level of Pin 4 and name this V1.
5) Measure the level of Pin 3 and name this V2.
6) Calculate Gain = 20 Log (( |V2 - V1| )/V1) V1<V2 + Gain, V1>V2 - Gain This value is the voltage gain of 1-Ach.
7) Next, reverse conditions at Pin 5 and Pin 8.
8) Input the same sine wave to Pin 2.
9) Measure and calculate in the same way. This value is the voltage gain of 1-Bch.
+
+
Figure 5
MAXIMUM INPUT LEVEL (FIGURE 6)
This measurement measures at output side.
1) Connect VCC to Pin 5, Pin 8 is low level or open.
2) Connect a distortion analyzer and an AC volt meter to
Pin 3.
3) Input a sine wave (1 kHz) to Pin 4 and elevate the voltage
gradually until the distortion gets to 0.1%.
4) When the distortion amounts to 0.1%, stop elevating and
measure the AC level of Pin 3.
This value is the maximum input level of 1-Ach.
5) Next, reverse conditions at Pin 5 and Pin 8.
6) Input the same sine wave to Pin 2.
7) Measure in the same way.
This value is the maximum input level of 1-Bch.
June 1999 TOKO, Inc. Page 5
Page 6
TK15329
TEST CIRCUITS AND METHODS (CONT.)
RESIDUAL NOISE (FIGURE 7)
This value is not S/N ratio. This is a noise which occurs from the device itself.
1) Connect VCC to Pin 5, Pin 8 is the open condition or low level.
2) Connect an AC volt meter to Pin 3.
3) Connect a capacitor from Pin 4 to GND.
4) Measure AC voltage of Pin 3. This value is the noise of 1-Ach. If the influence of noise from outside exists, use optional filters.
5) Next, reverse conditions at Pin 5 and Pin 8.
6) Connect to GND through a capacitor from Pin 2.
7) Measure in the same way. This value is the noise level of 1-Bch.
V
CC
ISOLATION (FIGURE 8)
This is the cross talk between Ach and Bch.
1) Connect VCC to Pin 8, Pin 5 is in the open condition or low level.
2) Connect AC volt meters to Pin 4 and Pin 3.
3) Connect a capacitor and a resistance in series to GND from Pin 2.
4) Input a sine wave (10 kHz, 1 Vrms) to Pin 4.
5) Measure the level of Pin 4 and name this V4.
6) Measure the level of Pin 3 and name this V3.
7) Calculate: ISO = 20 Log (V3 / V4)
This value is the isolation to Bch from Ach.
8) Next, reverse conditions at Pin 5 and Pin 8.
9) Change line of Pin 2 and Pin 4.
10) Input the same sine wave to Pin 2.
11) Measure and calculate in the same way.
This value is the isolation to Ach from Bch.
V
CC
++
Figure 7
+
10 K
+
+
Figure 8
Page 6 June 1999 TOKO, Inc.
Page 7
TEST CIRCUITS AND METHODS (CONT.)
V
CC
+
SEPARATION (FIGURE 9)
This is the cross talk between 1ch and 2ch.
1) Connect either Pin 5 or Pin 8 to VCC. One side pin is low level or open.
2) Connect AC volt meters to Pin 4 (or Pin 2) and Pin 10.
3) Connect Pin 9 and Pin 11 to GND through capacitors and a resistance.
4) Input a sine wave (10 kHz, 1 Vrms) to Pin 2 and Pin 4.
5) Measure the level of Pin 4 and name this V5.
6) Measure the level of Pin 10 and name this V6.
7) Calculate: SEP = 20 Log (V6 / V5)
This value is the separation to 2ch from 1ch.
V
CC
++
+
TK15329
Figure 10
+
OUTPUT TERMINAL DIFFERENCE
This is the DC output voltage difference between Ach and Bch. This is calculated by using values measured at the
+
10 K
I/O Terminal Voltage.
∆ Vcent = | (1 - Ach value) - (1 - Bch value) |
This value is the voltage difference of 1ch.
Figure 9
I/O TERMINAL VOLTAGE (FIGURE 10)
This is the DC voltage of input and output. Because the input and the output are nearly equal, only the output is measured.
1) Connect VCC to Pin 5, Pin 8 is in the open condition or low level.
2) Connect a DC volt meter to Pin 3 and measure. This value is the terminal voltage of 1-Ach.
3) Next, reverse conditions at Pin 5 and Pin 8.
4) Measure in the same way. This value is the terminal voltage of 1-Bch.
June 1999 TOKO, Inc. Page 7
Page 8
TK15329
THD
(%)
THD
(%)
LEVEL
(V
)
LEVEL
(dB)
TYPICAL PERFORMANCE CHARACTERISTICS
VCC = 8 V, TA = 25 °C, unless otherwise specified.
SUPPLY CURRENT
6
5
4
(mA)
3
CC
I
2
1
0
0 2 4 6 8 10 12 14 16
0.1
0.01
SUPPLY VOLTAGE
V
(V)
CC
TOTAL HARMONIC DISTORTION
vs. LOAD RESISTANCE
VS.
TOTAL HARMONIC DISTORTION
0.1
0.01
0.001
0.1 1 10 100
5
4
rms
3
2
vs. FREQUENCY
f (kHz)
DYNAMIC RANGE
vs. SUPPLY VOLTAGE
1
0.001
0.1 1 10 100 RL (kΩ)
DYNAMIC RANGE
vs. LOAD RESISTANCE
2
1
LEVEL (Vrms)
0
0.1 1 10 100 RL (kΩ)
0
0 2 4 6 8 10 12 14 16
VCC (V)
ISOLATION
-60
-70
-80
-90
-100
-110
0.1 1 10 100
vs. FREQUENCY
f (kHz)
Page 8 June 1999 TOKO, Inc.
Page 9
LEVEL
(dB)
TYPICAL PERFORMANCE CHARACTERISTICS
VCC = 8 V, TA = 25 °C, unless otherwise specified.
TK15329
SEPARATION
-60
-70
-80
-90
-100
-110
0.1 1 10 100
+.1
0
vs. FREQUENCY
f (kHz)
VOLTAGE GAIN
TEMPERATURE
VS.
CONTROL THRESHOLD VS.
TEMPERATURE
1.5
1
LEVEL (V)
0.5
0
-20 0 20 40 60 80 TA (°C)
RESIDUAL NOISE
TEMPERATURE
6
4
VS.
GVA (dB)
-.1
-20 0 20 40 60 80 TA (°C)
OUTPUT DIFFERENCE
TEMPERATURE
3
2
LEVEL (mV)
1
0
-20 0 20 40 60 80 TA (°C)
VS.
LEVEL (µVrms)
2
0
-20 0 20 40 60 80 TA (°C)
INPUT BIAS CURRENT
1.2
1.0
.8
.6
.4
CURRENT (µA)
.2
0
-20 0 20 40 60 80
TEMPERATURE
TA (°C)
VS.
June 1999 TOKO, Inc. Page 9
Page 10
TK15329
FUNCTION TABLE
1KEY 2KEY OUT
Lo Lo Floating
Hi Lo Ach
Lo Hi Bch
Hi Hi Floating
TERMINAL VOLTAGE AND CIRCUIT
Condition: VCC = 8 V.
.ONNIPTNEMNGISSAEGATLOVCDNOITCNUF/TIUCRIC
1V
2 4 9
11
3
01
5 8
CC
BNI,ANI
nepO:tupnI
V0.4:tupnI
TUO
nepO:tupnI
V0.4:tupnI
YEKV0
V8niPegatloVylppuS
V0 V4niPtupnIlangiS
V7.0
V4niPtuptuOlangiS
100
50 K
niPlortnoC
21DNGV0niPdnuorG
6 7
Page 10 June 1999 TOKO, Inc.
CNgnitaolFniPtcatnoCoN
Page 11
APPLICATION INFORMATION
1OUT
V
CC
GND
2OUT
1KEY 2KEY
1AIN
1BIN
2AIN 2BIN
+
R
L
10 µF
1Bin
11 10
9 8
7
2 Bin
1Key
2Key
+
R
L
10 µF
+
33 µF
1Ain 2Ain
KEY INPUT CIRCUIT
1ch and 2ch is separate action by each control keys. Figure 11 is an equivalence circuit of key input. If two keys are low level or high level at the same time then the output is floating condition. (See Terminal DC Voltage and Circuit table on page 9).
TK15329
Key in
to Logic
Figure 11
SWITCHING TIME
This time is the signal change response time compared to the control key input signal. Figure 12 illustrates the timimg chart. T = 2 µs typically.
Bch (Ach)
Key in
50%
Ach (Bch)
SW out
t
Figure 12
APPLICATION
Figure 13
CROSS TALK (ISOLATION AND SEPARATION)
Figure 14 is an example of a layout pattern. In the application of the TK15329M, the following must be considered. Because of the high impedance at the inputs, the capacitors can act as antennas to each other. If the parts are bigger, and the space between the capacitors is too narrow, then cross talk will increase. Therefore, when designing the printed circuit pattern, separate the input capacitors as far as possible and use as small a part as possible (e.g., surface mount types, etc.).
Figure 13 illustrates an example of a typical application. The standard application is to use direct coupling at the inputs and capacitor coupling at the outputs of the TK15329M. For characteristics of distortion and dynamic range versus RL, refer to the graphs in the Typical Perfor­mance Characteristics. The TK15329M can also be used with direct coupling, but the characteristics will get worse (distortion, etc.). If capacitor coupling is desired, then it is recommended to use built-in type biased circuitry of the TK15327M. DC input bias voltage of TK15327M is VCC/2 V.
June 1999 TOKO, Inc. Page 11
Figure 14
Page 12
TK15329
11 10
9 8
7
11 10
9 8
7
+
+
+
+
+
+
+
+
+
+
abc d a
b
cd
+
327-1
327-2
1ch-out 2ch-out12 34
control
1ch-in 2ch-in
V
CC
APPLICATION INFORMATION (CONT.)
OUTPUT TERMINAL VOLTAGE DIFFERENCE
This parameter is the output voltage difference between Ach and Bch, and appears when the channel changes from Ach to Bch, or changes to the reverse. Generally, this is called Switching Noise or Pop Noise. If this value is big and if this noise is amplified by the final amplifier and is outputted by the speakers, then it appears as a Shock Sound. Output terminal voltage difference of the TK15329M is a value that adds the internal bias difference and the off­set voltage difference. The off-set voltage difference is very small, its typical value is 3 mV, but the input bias is supplied from the outside. So almost the output bias difference will be decided by the supply bias difference. The TK15329M has a floating position. Pay attention when operating as for the change timing of the two keys. If the floating condition is long, then the output voltage may fluctuate by RL and the difference may appear larger. Toko can offer the “Muting IC” if users wish to mute Switching Noise.
DIRECT TOUCH
The signal input terminals: Internal circuits are operated by constant current circuit, even if VCC or GND is contacted, damage does not occur. The signal output terminal: Outflow or inflow current is decided by ability of final transistor, but protection circuit is not attached. If GND or VCC are contacted damage may occur. Pay attention to long time contact. Do not supply over the maximum rating. Referenced to GND, do not provide to all terminals over V
CC
+0.3 V or -0.3 V.
FLOATING POSITION
TK15329M has floating position and can increase optional channels. Figure 15 is an example to select one output from four inputs, and the change operates by four controls. This function is shown in the table below. If channels increase more, control keys will increase with the same number too. In this case the Decoder may be necessary. Each device and channel has individual output voltage values within a specification. When channels are in­creased caution the output terminal voltage difference too.
Figure 15
DC SIGNAL INPUT
The output of the TK15329M has a saturation voltage (both VCC and GND sides about 1.0 V); accordingly the use of a DC signal is not recommend (e.g., the pulse signal etc.)
NC TERMINAL
NC terminals are not wired inside IC by bonding wire. NC terminals are not tested so do not connect at outside.
Page 12 June 1999 TOKO, Inc.
FUNCTION TABLE
KEY NO.
1234
OUTPUT
cHLLL aLHLL bLLHL d LLLH
When all is high level or low level, output is the floating. Plural high level is prohibited.
Page 13
NOTES
TK15329
June 1999 TOKO, Inc. Page 13
Page 14
TK15329
NOTES
Page 14 June 1999 TOKO, Inc.
Page 15
NOTES
TK15329
June 1999 TOKO, Inc. Page 15
Page 16
TK15329
PACKAGE OUTLINE
SSOP-12
12
Lot. No.
AAA
YYY
+0.15
-0.05
0.3
Marking Information
0.4
1.2
7
61
5.0
Marking
5.4 e1
4.4
1.7 max
1.4
0 ~ 0.2
e
0.8
M0.10
0.1
e
0.8
Recommended Mount Pad
0 ~ 10
0.5
+
0.3
6.0
+0.15
-0.15
0.15
TK15329M 329
Dimensions are shown in millimeters Tolerance: x.x = ± 0.2 mm (unless otherwise specified)
Toko America, Inc. Headquarters 1250 Feehanville Drive, Mount Prospect, Illinois 60056 Tel: (847) 297-0070 Fax: (847) 699-7864
TOKO AMERICA REGIONAL OFFICES
Midwest Regional Office Toko America, Inc. 1250 Feehanville Drive Mount Prospect, IL 60056 Tel: (847) 297-0070 Fax: (847) 699-7864
Western Regional Office Toko America, Inc. 2480 North First Street , Suite 260 San Jose, CA 95131 Tel: (408) 432-8281 Fax: (408) 943-9790
Eastern Regional Office Toko America, Inc. 107 Mill Plain Road Danbury, CT 06811 Tel: (203) 748-6871 Fax: (203) 797-1223
Semiconductor Technical Support Toko Design Center 4755 Forge Road Colorado Springs, CO 80907 Tel: (719) 528-2200 Fax: (719) 528-2375
Visit our Internet site at http://www.tokoam.com
The information furnished by TOKO, Inc. is believed to be accurate and reliable. However, TOKO reserves the right to make changes or improvements in the design, specification or manufacture of its products without further notice. TOKO does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents or other rights of third parties which may result from the use of its products. No license is granted by implication or otherwise under any patent or patent rights of TOKO, Inc.
Page 16 June 1999 TOKO, Inc.
All Rights Reserved
IC-119-TK119xx
0798O0.0K
Printed in the USA© 1999 Toko, Inc.
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