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TA8874Z
TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC
TA8874Z
SOUND MULTIPLEX BROADCAST DEMODULATOR IC FOR DOMESTIC TV / VTR
The TA8874Z stores a function necessary for demodulating domestic TV sound multiplex broadcast and trap for eliminating facsimile broadcasting signals that superimpose within the sound multiplex broadcast bandwidth. Furthermore no adjustment other than separation is necessary by using a 32fH oscillation. Using an I2C bus it switches an output mode and performs separation adjustment and broadcast mode read out.
FEATURES
l Band pass filter for sub audio signal l FM demodulator for sub audio signal l Stereo matrix l Main / sub de-emphasis l Output for stereo / bilingual indication l Trap for facsimile broadcast (4.5fH, 6fH) l Various controls by I2C bus Weight: 1.0 g (Typ.)
000707EBA1
* TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such TOSHIBA products could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and conditions set forth in the "Handling Guide for Semiconductor Devices," or "TOSHIBA Semiconductor Reliability Handbook" etc.. * The TOSHIBA products listed in this document are intended for usage in general electronics applications (computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury ("Unintended Usage"). Unintended Usage include atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in this document shall be made at the customer's own risk. * The products described in this document are subject to the foreign exchange and foreign trade laws. * The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA CORPORATION for any infringements of intellectual property or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any intellectual property or other rights of TOSHIBA CORPORATION or others. * The information contained herein is subject to change without notice.
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BLOCK DIAGRAM
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TERMINAL INTERFACE CIRCUIT
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I C BUS ADDRESS MAP
SLAVE ADDRESS WRITE 84 (HEX) READ 85 (HEX)
2
CHARACTERISTIC
SUB ADDRESS
DATA MSB Write LSB
DEFAULT
NOTE
Mode Select Separation Adjustment
-- --
LED STE T1 (*)
LED BIL x
LDE EXT
Mono Set
Mute
F mono 6 bit
MODE sub
MODE main
8 (10) 22 (10)
Read Mode Output Ident of broad cast mode B1 B0 CHAG FLAG x x x x x --------
*:
This bit is for testing mode. This bit must be "0" at any time.
DATA FORMAT
Write mode
S Slave address 0 A Mode select A Separation adjustment A P
or
S Slave address 0 A Mode select A P
Read mode
S Slave address 1 A Data A P
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CONTROL BIT MAP Output signal
BROAD CAST MODE mono LED STE x x x Stereo x x x x x BIL x x x x LED BIL x x x x x x x x x x x x LED EXT x x x x x x x x x x x x MONO SET x x L x x H L L L L x H MUTE L H L L H L L L L L H L F MONO x x L H x x x x x x x x MODE SUB x x x x x x L L H H x x MODE MAIN x x x x x x L H L H x x OUTPUT SIGNAL L R L+R Mute L L+R Mute L+R main main sub main Mute main L+R Mute R L+R Mute L+R main main sub sub Mute main
LED mode
BROAD CAST MODE LED STE x L mono L H H x x x Stereo L L H H x x BIL L L H H LED BIL x L H L H x x x L H L H x x L H L H LED EXT L H H H H L L L H H H H L L H H H H MONO SET x x x x x L L H x x x x L H x x x x MUTE x x x x x x x x x x x x x x x x x x F MONO x x x x x L H x x x x x x x x x x x MODE SUB x x x x x x x x x x x x x x x x x x MODE MAIN x x x x x x x x x x x x x x x x x x LED STE -- -- -- O -- O -- -- -- -- O -- -- -- -- -- O -- BIL -- -- O -- -- -- -- -- -- O -- -- O -- -- O -- --
Mode output
BROAD CAST MODE mono Stereo BIL LED STE x x x LED BIL x x x LED EXT x x x MONO SET x x x MUTE x x x F MONO x x x MODE SUB x x x MODE MAIN x x x IDENT OF BROAD CAST MODE B1 B0 L L H H L L
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I C BUS CONTROLLED FORMAT SUMMARY
2
(1)
Start and stop condition
(2)
Bit transfer
(3)
Acknowledge
(4)
A6 1
Slave address
A5 0 A4 0 A3 0 A2 0 A1 1 A0 0
R/W
1/0
Purchase of TOSHIBA I2C components conveys a license under the Philips I2C Patent Rights to use these components in an I2C system, provided that the system conforms to the I2C Standard Specification as defined by Philips.
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MAXIMUM RATINGS (Ta = 25C)
CHARACTERISTIC Power Supply Voltage Power Dissipation Operating Temperature Storage Temperature SYMBOL VCC PD (Note 1) Topr Tstg RATING 15 890 -20~65 -55~150 UNIT V mW C C
Note 1: When using the device at above Ta = 25C decrease the power dissipation by 7.2mW for each increase of 1C. Note 2: These in refards to this, please handle with care.
RECOMMENDED SUPPLY VOLTAGE
PIN No. 14 18 PIN NAME VCC9V VCC5V MIN 8.1 5.0 TYP. 9.0 5.6 MAX 9.9 6.2 UNIT V V
ELECTRICAL CHARACTERISTICS (Unless otherwise specified, VCC = 9V, Ta = 25C) DC CHARACTERISTICS
CHARACTERISTIC Power Supply and Current SYMBOL ICC14 ICC18 V1 V5 V6 V8 V9 Terminal Voltage V10 V12 V13 V19 V20 V21 TEST CIRCUIT -- -- -- -- -- -- -- -- -- -- -- -- -- TEST CONDITION -- -- -- -- -- -- -- -- -- -- -- -- -- MIN 22 12 3.5 3.5 3.5 2.1 2.1 1.4 3.5 2.8 3.5 3.5 4.2 TYP. 32 18 4.5 4.5 4.5 3.1 3.1 2.4 4.5 3.8 4.5 4.5 5.2 MAX 42 25 5.5 5.5 5.5 4.1 4.1 3.4 5.5 4.8 5.5 5.5 6.2 V UNIT mA
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AC CHARACTERISTICS
CHARACTERISTIC 2fH fH 3fH 3.5fH 4.5fH 6fH (31.5kHz) (15.7kHz) (47.2kHz) (55.07kHz) (70.8kHz) (94.4kHz) SYMBOL A2fH AfH A3fH A3.5fH A4.5fH- A6fH VTV VTV ATV.L ATV.H.M ATV.H.S THD TV-M THD TV-S S / N TV-M S / N TV-S CR TV.MS CR TV.SM VSUB.M VSUB.S SE TV VQ SQ VTV MUT Voff TV MUT VMUT ON RIN ROUT AVQ TEST CIRCUIT -- -- -- -- -- -- -- -- (Note 7) SUB : V4 = 5V TEST CONDITION (Note 1) (Note 2) (Note 3) (Note 4) (Note 5) (Note 6) MIN 90 -- -- -- -- -- 500 -1.5 0 -16 -16 -- V4 = 5V -- 60 V4 = 5V V4 = 5V V4 = 0V V4 = 0V V4 = 5V 60 60 60 -- -- 34 300 14 V7 = 5V V7 = 05V V7 = 0~5V -- -- -- 5 -- 5 TYP. 130 -- -- -- -- -- 650 0 0.9 -13 -13 0.2 1.5 70 65 70 70 40 130 -- -- -- -- 5 1.75 10 500 10 MAX 170 -14 -6 -24 -20 -26 800 1.5 2.5 -10 -10 1.1 3.5 -- -- -- -- 70 160 -- -- -- 1.5 100 2.0 15 -- -- UNIT mVp-p dB dB dB dB dB mVrms dB dB dB dB % % dB dB dB dB mVp-p mVp-p dB mVp-p dB mVp-p mV V k dB
Output (L, R) MONO SUB Output Level Discrepancy (L, R) Output Frequency CharacteristicL, R (M, S) 100Hz Output Frequency CharacteristicL, R (MONO) 10kHz Output Frequency CharacteristicL, R (SUB) 10kHz Distortion Factor Output MONO (L, R) Distortion Factor Output SUB (L, R) S / N MONO (L, R) S / N SUB (L, R) Cross Talk MS Cross Talk SM Remaining Carrier MAIN Remaining Carrier SUB Stereo Separation Q Signal AM Detection Q Signal Sensitivity Mute After Sound Output Mute DC Offset Output Mute on Voltage Input Impedance MPX Output Impedance Q Signal Interference Elimination Efficiency
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
(Note 8) (Note 9) (Note 10) (Note 11) (Note 12) (Note 13) (Note 14) (Note 15) (Note 16) (Note 17) (Note 18) (Note 19) (Note 20) (Note 21) (Note 22) (Note 23) (Note 24)
SUB : V4 = 5V -- V4 = 5V
Input resistance of pin 12 Output resistance of pins 8 and 9 (Note 25)
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MEASUREMENT CONDITION
NOTE 1 2 3 4 5 6 INPUT SIGNAL 31.5kHz, 50mVp-p CW 15.75kHz, 50mVp-p CW 47.2kHz, 50mVp-p CW 55.07kHz, 50mVp-p CW 70.8kHz, 50mVp-p CW 94.4kHz, 50mVp-p CW MONO : 400Hz, 250mVrms 7 SUB : 400Hz, 150mVrms, 100% modulation 15kHz LPF SUB : V4 = 5V V8, V9 Output : measure V8 and 9 output level. Output level difference : 20 log (V8 / V9) -- -- V13 Set 2fH level to 0dB reference. FILTER -- APPLIED VOLTAGE -- MEASUREMENT PIN V13 MEASUREMENT METHOD Measure output signal amplitude exclusive of pin 13 external capacitance.
BIL.Q signal MONO : 100Hz, 250mVrms 8 SUB : 100Hz, 150mVrms 100% modulation 15kHz LPF -- V4 = 5V -- V4 = 5V -- V4 = 5V V4 = 5V V4 = 0V V4 = 0V V4 = 5V -- -- -- V8, V9 V8, V9 V8, V9 V8, V9 V8, V9 V8, V9 V8, V9 V8, V9 V8, V9 V1 18Pin LED Measure distortion factor of output. Measure distortion factor of output. Compare when no signal. Compare when no signal. Measure output leakage signal in SUB mode. Measure output leakage signal in MAIN mode. Measure residual carrier (31.5kHz) Measure residual carrier (63.0kHz) Measure comparison with signal outputted to L when R is 1. Measure 922.5Hz detection output. Measure level difference until pin 18 LED lamp extinguishes, lowering level from 56.6mVp-p. SUB : V4 = 5V V8, V9 Measure level at 1kHz first and compare to its level.
BIL.Q signal 9 10 11 12 13 14 15 16 17 18 19 20 21 MONO : 10kHz, 250mVrms SUB : 10kHz, 150mVrms, 100% modulation
BIL.Q signal MONO : 1kHz, 250mVrms SUB : 1kHz, 150mVrms, 100% modulation 15kHz LPF 15kHz LPE 1kHz BPF -- -- 1kHz BPF -- --
MONO : 1kHz, 250mVrms SUB : 1kHz, 150mVrms, 100% modulation
MONO : 1kHz, 250mVrms SUB : 1kHz, 150mVrms, 100% modulation
SUB carrier, BIL.Q signal SUB carrier, BIL.Q signal Only R-ch 100% modulation, STE.Q signal BIL.Q signal BIL.Q signal
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NOTE 22 23 INPUT SIGNAL MONO : 1kHz, 250mVrms -- FILTER 1kHz BPF -- APPLIED VOLTAGE V7 = 5V V7 = 05V V7 = 0 ~ 5V MEASUREMENT PIN V8, V9 V8, V9 V8, V9 MEASUREMENT METHOD Measure signal outputted when muting. Measure voltage change of output when V7 = 0 is changed to 5V. Measure voltage that V8 and 9 output signal is lower than 1mVp-p, raising V7 gradually from 0V. Compare level when only SUB signal to level when only BIL.Q signal.
24
MONO : 1kHz, 250mVrms SUB : 1kHz, 150mVrms, 100% modulation
--
25
--
--
V1
BIL.Q signal
(Input signal) BIL.Q signal STE.Q signal SUB signal (Filter) L.P.F . B.P.F. --
: : : : : :
Carrier 55.07kHz, modulation frequency 922.5Hz, 60% AM modulation, 56.6mVp-p Carrier 55.07kHz, modulation frequency 982.5Hz, 60% AM modulation, 56.6mVp-p Carrier 31.5kHz, FM modulation, 150mVrms Biquadratic Batterworth 15kHz Quadratic 1kHz, bandwidth 200Hz Through unless otherwise specified.
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TEST CIRCUIT
Ceramic resonator : CSB503-E7 (MURATA MFG. Co., LTD.)
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PACKAGE DIMENSIONS
Weight: 1.0 g (Typ.)
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