TA8776N TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC TA8776N SURROUND PROCESSOR FOR A CTV TA8776N is a surround processor controlled I2C bus. It incorporates following functions on a 30pin dual-in-line shrink-type plastic package. FEATURES Surround circuit Sound processor circuit l Sumilated Surround l Input Switch l Hall Ambience l Volume Adj. l Dolby Surround (Input Terminal) l Balance Adj l 3D Center Output (L + R) for a super woofer. l Bass Adj. l Surround Output (L − R) 2 l Surround Level Adj l Treble Adj. Weight: 1.99g (Typ.) I C interface l Filter Adj. by Bus line l DAC Output (2ch) BLOCK DIAGRAM 000707EBA2 · 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.. 2001-01-15 1/15 TA8776N TERMINAL FUNCTION PIN No. NAME 1 φ4 2 φ3 3 φ2 4 φ1 5 Dolby In 6 L In 7 R In FUNCTION INTERFACE CIRCUIT Terminals for capacitors of the phase shifter blocks. Value of phase shift in each block is −1 φ [deg.] = −2tan (2πfCR) C is capacitance of external capacitor. R is resistance of internal register (10kΩ (Typ.)). Input terminals. "L In" is for L-ch signal. "R In" is for R-ch signal. "Dolby In" is for decoded Dolby Signal. Terminal for tone control block. 8 Filter Adj. Cross-over frequency is set by sink current of this terminal. If 390kΩ connect, cross-over frequency is about 1kHz. 9 TP (R) 10 TP (L) Terminals for capacitors for offset cancel circuits. 11 Bass Filter 18 Treble Filter Terminals for tone control block. Control current is smoothed by external capacitors. 000707EBA2 · 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. 2001-01-15 2/15 TA8776N PIN No. NAME FUNCTION INTERFACE CIRCUIT Input terminal for muting. 12 Mute 13 L − R Filter 14 L + R Filter Control current is smoothed by external capacitors. 15 VCC 12V VCC (12V) ― 16 VCC 9V VCC (9V) ― 17 GND (Analogue) Gnd for Analogue ― 19 R Out. 20 L Out. 21 L − R Out. 22 L + R Out. 23 DAC 1 24 DAC 2 Applied voltage more than 2V to this terminal, Muting is active. Terminals for level control blocks. Output terminals. 2 Open collector switches controlled by I C bus. Terminal for surround L.P.F. block. Cut-off frequency of the surround L.P.F. is set by external capacitor. 25 Sorround L.P.F. fc = 1 Hz 2 F RC R is registance of internal register (10kΩ (Typ.)). C is capacitance of external capacitor. 2001-01-15 3/15 TA8776N PIN No. NAME FUNCTION INTERFACE CIRCUIT Terminal for balance control block. Control current is smoothed by external capacitor. 26 Balance Filter 27 Volume Filter Control current is smoothed by external capacitor. 28 SDA Terminal for SDA. 29 SCL Terminal for SCL. 30 GND (Digital) Gnd for Digital. Terminal for volume control block. ― 2001-01-15 4/15 TA8776N 2 I C BUS CONTROL l Main Address 80 (h) : (h) = Hexa Decimal l Sub Address Function-sub address reference table FUNCTION SUB ADDRESS POWER ON DEFAULT EFFECTIVE DATA RANGE BASS 01 (h) 32 (h) (Center) Treble 02 (h) 32 (h) (Center) Volume 03 (h) 0 (h) (Minimum) L−R 04 (h) 0 (h) (Minimum) L+R 05 (h) 0 (h) (Minimum) Balance 06 (h) 32 (h) (Center) Surround / DAC Input Mode 07 (h) F0 (h) (Normal / DAC1, 2 L / Surr. Off) ― Mute 08 (h) 3 (h) (L − R Mute, L + R Mute) ― Filter Adjustment 09 (h) 0 (h) (Minimum) 0~64 (h) 0~0F (h) Mode explanation (Input mode : normal) MODE OUTPUT Lout Rout (L−R) out (L+R) out L R ― L+R MONO B1 M − k (M) 4φ M + k (M) 4φ −k (M) 4φ M STEREO A1 L+k (L − R) φ R − k (L − R) φ k (L − R) φ L+R STEREO B1 L+k (L − R) 4φ R − k (L − R) 4φ k (L − R) 4φ L+R L R k·D L+R MONO B2 M − (M) 4φ M + (M) 4φ −k (M) 4φ M STEREO A2 L + (L−R) φ R − (L − R) φ k (L − R) φ L+R STEREO B2 L + (L−R) 4φ R − (L − R) 4φ k (L − R) 4φ L+R MONO B3 M M −k (M) 4φ M STEREO A3 L R k (L − R) φ L+R STEREO B3 L R k (L − R) 4φ L+R OFF DOLBY M D k ()φ ( ) 4φ : : : : : Monoural Input Signal Dolby Surround Input Signal Co-efficient Phase Shifted φ Phase Shifted 4φ 2001-01-15 5/15 TA8776N Data input mode reference table [Sub Address : 07 (h)] DATA MSB OUTPUT MODE LSB Lout Rout × × 1 1 × × × × Normal L R × × 1 0 × × × × L L L × × 0 1 × × × × R R R × × 0 0 × × × × Reverse R L × : Don’t care Data surround mode reference table [Sub Address : 07 (h)] DATA MSB MODE LSB INTERNAL SWITCH SW 1 SW 2 SW 3 SW 4 × × × × 0 0 0 0 OFF ON φ 1 1 × × × × 0 0 0 1 MONO B1 OFF 4φ 2 2 × × × × 0 0 1 0 STEREO A1 ON φ 2 2 × × × × 0 0 1 1 STEREO B1 ON 4φ 2 2 × × × × 0 1 0 0 DOLBY ON φ 3 1 × × × × 0 1 0 1 MONO B2 OFF 4φ 2 3 × × × × 0 1 1 0 STEREO A2 ON φ 2 3 × × × × 0 1 1 1 STEREO B2 ON 4φ 2 3 × × × × 1 0 0 0 (OFF) ON φ 1 1 × × × × 1 0 0 1 MONO B3 OFF 4φ 2 1 × × × × 1 0 1 0 STEREO A3 ON φ 2 1 × × × × 1 0 1 1 STEREO B3 ON 4φ 2 1 × × × × 1 1 0 0 (OFF) ON φ 1 1 × × × × 1 1 0 1 (OFF) ON φ 1 1 × × × × 1 1 1 0 (OFF) ON φ 1 1 × × × × 1 1 1 1 (OFF) ON φ 1 1 × : Don’t care Data DAC output reference table Data mute mode reference table [Sub Address : 07 (h)] DATA MSB [Sub Address : 08 (h)] OUTPUT* LSB DATA DAC 1 DAC 2 MSB LSB Mute 1 Mute 2 (L, R) (L − R, L + R) 0 0 × × × × × × H H × × × × × × 0 0 OFF OFF 0 1 × × × × × × H L × × × × × × 0 1 ON ON 1 0 × × × × × × L H × × × × × × 1 0 OFF ON 1 1 × × × × × × L L × × × × × × 1 1 ON ON × : Don’t care × : Don’t care * : Open Collector Output 2001-01-15 6/15 TA8776N 2 I C BUS CONTROLLED FORMAT SUMMARY Bus controlled format of TA8776N is based on I2C Bus Control format of Philips. Data transfer format (1) Start and stop condition (2) Bit transfer (3) Acknowledge (4) Slave address 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. 2001-01-15 7/15 TA8776N MAXIMUM RATINGS (Ta = 25°C) CHARACTERISTIC SYMBOL RATING UNIT VCC 15 V PDmax 1400 (Note 1) mW Operating Temperature Topr −20~65 °C Storage Temperature Tstg −55~150 °C Supply Voltage Power Dissipation Note 1: Note 2: When using the device at above Ta = 25°C, decrease the power dissipation by 12.5mW for each increase of 1°C. As this IC is weak in a surge voltage, handle it with care from being damage. RECOMMENDED SUPPLY VOLTAGE PIN No. PIN NAME MIN TYP. MAX UNIT 15 VCC 12V 10.8 12.0 13.2 V 16 VCC 9V 8.1 9.0 9.9 V ELECTRICAL CHARACTERISTICS DC voltage characteristics (VCCPin15 = 12V, VCCPin16 = 9V, Ta = 25°C) PIN No. PIN NAME SYMBOL MIN TYP. MAX UNIT 1 φ4 V1 3.9 4.4 4.9 V 2 φ3 V2 3.9 4.4 4.9 V 3 φ2 V3 3.9 4.4 4.9 V 4 φ1 V4 3.9 4.4 4.9 V 5 DOLBY In V5 3.9 4.4 4.9 V 6 L In V6 3.9 4.4 4.9 V 7 R In V7 3.9 4.4 4.9 V 8 Filter Adj. V8 1.4 1.9 2.4 V 9 TP R V9 3.7 4.2 4.2 V 10 TP L V10 3.7 4.2 4.2 V 11 BASS Filter V11 3.9 4.4 4.9 V 12 Mute V12 ― 0.0 0.5 V 13 L − R Filter V13 3.6 4.1 4.6 V 14 L + R Filter V14 3.6 4.1 4.6 V 18 Treble Filter V18 3.9 4.4 4.9 V 19 R Out V19 4.5 5.0 5.5 V 20 L Out V20 4.5 5.0 5.5 V 21 L − R Out V21 4.5 5.0 5.5 V 22 L + R Out V22 4.5 5.0 5.5 V 23 DAC1 out (ON) V23 ― 0.1 0.4 V 24 DAC2 out (ON) V24 ― 0.1 0.4 V 25 Surround L.P.F. V25 3.7 4.2 4.7 V 26 Balance Filter V26 5.5 6.0 6.5 V 27 Volume Filter V27 3.0 3.5 4.0 V 2001-01-15 8/15 TA8776N DC CURRENT CHARACTERISTICS (VCCPin15 = 12V, VCCPin16 = 9V, Ta = 25°C) PIN No. PIN NAME SYMBOL MIN TYP. MAX UNIT 15 VCC 12V I15 8.0 17.0 25.0 mA 16 VCC 9V I16 22.0 45.0 68.0 mA AC CHARACTERISTICS (Unless otherwise specified VCCpin15 = 12V, VCCpin16 = 9V, Ta = 25°C) CHARACTERISTIC SYMBOL TEST CIRCUIT TEST CONDITION ― (Note 1) MIN TYP. MAX −2.0 0.0 2.0 3.0 5.0 7.0 UNIT L-ch R-ch Gain L−R dB Dolby L+R L-ch R-ch Total Harmonic Distortion THD ― (Note 2) ― 0.25 1.1 % ― (Note 3) 55 60 ― dB ― (Note 4) −345 −300 −245 ° ― (Note 5) −2.0 0 2.0 dB −2.0 0 2.0 −13.0 −11.0 −9.0 Dolby −2.0 0 2.0 L+R −7.0 −6.0 −5.0 L−R Dolby L+R L-ch R-ch S/N L−R Dolby L+R Surround Sound Phase L-ch Frequency Characteristics R-ch (100Hz) L−R Dolby L-ch R-ch Frequency Characteristics (10kHz) L−R Balance (Center) Balance (Max.) Balance (Min.) L-ch R-ch L-ch R-ch ― (Note 6) dB ― (Note 7) −2.0 0 2.0 dB ― (Note 8) 1.0 1.9 3.0 dB ― (Note 9) ― −60 −50 dB Filter (Min.) F Max ― (Note 10) 1.3 1.6 1.9 kHz Filter (Min.) F Min ― (Note 11) 0.4 0.6 0.8 kHz 2001-01-15 9/15 TA8776N CHARACTERISTIC Treble (Max.) Treble (Min.) BASS (Max.) BASS (Min.) SYMBOL L-ch R-ch L-ch R-ch L-ch R-ch L-ch R-ch Mute On Voltage TEST CIRCUIT TEST CONDITION MIN TYP. MAX UNIT ― (Note 12) 5.0 8.0 10.0 dB ― (Note 13) −10.0 −8.0 −5.0 dB ― (Note 14) 5.0 8.0 10.0 dB ― (Note 15) −10.0 −8.0 −5.0 dB ― (Note 16) 1.0 1.4 1.8 V 50 ― ― L-ch → R-ch R-ch → L-ch Crosstalk L-ch, R-ch → Dolby ― (Note 17) Dolby → L-ch dB 40 ― ― Dolby → R-ch Dynamic Range (1) Dynamic Range (2) Dynamic Range (3) L-ch R-ch L-ch R-ch L-ch R-ch ― (Note 18) 5.6 ― ― Vp-p ― (Note 19) 4.0 ― ― Vp-p ― (Note 20) 1.6 ― ― Vp-p 5.6 ― ― 5.0 ― ― 5.6 ― ― L−R Dynamic Range (4) L+R ― (Note 21) Dolby Surround Switch Offset Vp-p ― (Note 22) ― ― 200 mV ― (Note 23) ― ― 600 mV L-ch Mute DC Offset R-ch L−R L+R 2001-01-15 10/15 TA8776N TEST CONDITION CONDITION NOTE CHARACTERISTICS Bass 01h Tre 02h Vol 03h Lev 1 Lev 2 04h 05h Bal 06h L-ch Gain L−R Cen Cen Max Max Max Cen Dolby L+R ― L−R Cen Cen Max Max Max Cen Dolby Cen Cen Max Max Max Cen Dolby Surround Phase 5 Cen Cen Max Max Max Cen [100Hz] Cen Cen Max Max Max Cen 7 freq.Response [10Hz] Balance [Max] 9 Balance [Min] Hall Hall Dolby L+R ― L−R Cen Cen Max Max Max Cen Hall Dolby Dolby L+R ― L-ch R-ch L-ch R-ch Min Measure THD. 1kHz, 500mVrms Cen Cen Max Max Max Cen Cen Max Max Max Cen Cen Max Max Max Cen Min Max Max Min Ref. level : vo with no signal input 60Hz, 500mVrms Min 400Hz, 500mVrms 1kHz / Min Min vi-L − R Ref : vi (1kHz) Pin 25 : OPEN 1kHz / Ref. :vo (1kHz) 10Hz, Pin 25 :5600pF to 100Hz, 500mVrms Off R-ch Balance Center 8 Hall Dolby L-ch 6 20ℓog vo / vi 60Hz, 500mVrms Off R-ch L−R Min ― L-ch freq.Response Hall 1kHz, 500mVrms Dolby L+R 4 1kHz, 500mVrms Off R-ch L−R Min ― L-ch S/N MEASUREMENT METHOD Dolby L+R 3 INPUT SIGNAL Off R-ch THD Hall Dolby L-ch 2 Fil 09h Off R-ch 1 Mode 07h 500mVrms GND Vout (L - ch) Vout (R - ch) Off Min 1kHz, 500mVrms 20log Off Min 1kHz, 500mVrms Ref. : Bal Center Off Min 1kHz, 500mVrms Ref. : Bal Center 0.3~2kHz, Freq. 500mVrms vo becomes Max 0.3~2kHz, Freq. 500mVrms vo becomes Max 10 Filter [Min] Min Min Max Max Max Cen Off Max 11 Filter [Max] Min Min Max Max Max Cen Off Min 2001-01-15 11/15 TA8776N CONDITION NOTE 12 CHARACTERISTICS Treble [Min] L-ch Bass 01h Tre 02h Vol 03h Lev 1 Lev 2 04h Cen Max Max Treble [Max] L-ch Cen Min 05h 07h Fil 09h Max Max Cen Off Min 1kHz / 10kHz, 500mVrms Ref Max Max Max Cen Off Min 1kHz / 10kHz, 500mVrms Ref Max Cen Max Max Max Cen Off Min 1kHz / 100kHz, 500mVrms Ref Min Cen Max Max Max Cen Off Min 1kHz / 100kHz, 500mVrms Ref Cen Cen Max Max Max Cen Off Min 1kHz / 500mVrms R-ch 14 Bass[Max] L-ch R-ch 15 16 Bass[Min] L-ch R-ch Mute On Voltage MEASUREMENT METHOD Mode R-ch 13 INPUT SIGNAL Bal 06h : vo (1kHz) Treble: Center : vo (1kHz) Treble: Center : vo (1kHz) Bass : Center : vo (1kHz) Bass : Center Ref : L-ch input level Mes : R-ch output level Ref Crosstalk Mes : L-ch output level L-ch → R-ch R-ch → L-ch 17 : R-ch input level L, R-ch → Dolby Min Cen Max Max Max Cen Off Min Ref 1kHz / 500mVrms Dolby → L-ch : L-ch or R-ch input level Mes : L-R output level Ref : D input level Mes : L-ch output level Dolby → R-ch Ref : D inptut level Mes : R-ch output level D Range (1) 18 L-ch Cen Cen Max Max Max Cen Off Adj. 1kHz Measure input level when THD = 3%. Max Max Max Max Max Cen Off Adj. 1kHz Measure input level when THD = 3%. Max Max Max Max Max Cen Adj. 1kHz Measure input level when THD = 3%. Adj. 1kHz Measure input level when THD = 3%. R-ch D Range (2) 19 L-ch R-ch D Range (3) 20 L-ch R-ch D Range (4) 21 L−R L+R Dolby Simulate Hall Cen Cen Max Max Max Cen ― Dolby 2001-01-15 12/15 TA8776N CONDITION NOTE 22 CHARACTERISTICS Surround SW Offset Mute DC 23 Tre 02h Vol 03h Lev 1 Lev 2 Mode 05h Bal 06h 04h Cen Cen Max Max Max Cen ― L-ch R-ch Offset Bass 01h L−R L+R 07h Fil 09h INPUT SIGNAL Min AC GND Measure offset level between some surround mode and other surround mode Min AC GND Measure offset level between muting mode and normal mode Off Cen Cen Max Max Max Cen Hall MEASUREMENT METHOD ― 2001-01-15 13/15 TA8776N APPLICATION EXAMPLE CIRCUIT 2001-01-15 14/15 TA8776N PACKAGE DIMENSIONS Weight: 1.99g (Typ.) 2001-01-15 15/15