AN7356

ICs for Cassette/Cassette Deck Use AN7356NSC Recording and playback equalizer amp. IC for Hi-Fi cassette deck s Overview The AN7356NSC is an audio signal processing IC for analog cassette deck. All the recording and playback processing can be realized with one chip. 0.45 Unit: mm 1 42 s Features • Control various adjustment circuit by serial data • Playback system • Built-in variable volume circuit (±6 dB) for playback gain adjustment • Built-in various equalizer switching circuit • Built-in series mute circuit • Recording system • Built-in equalizer (freq. characteristics, gain) circuit of middle and high frequencies • Built-in volume circuit (+20 dB) for overall gain adjustment • With low frequency band boost pins • Built-in drive circuit for current output • With parallel data output 1.0 21 0.1±0.1 22 0.3 0.15 9.5±0.3 11.5±0.3 SSOP042-P-0450A s Applications • Cassette deck (Hi-Fi) 2.0±0.2 0.9 21.25±0.3 0.35±0.1 1 AN7356NSC s Block Diagram −VEE 1 T1 2 T2 3 4 PB 5 6 600 LPF ICs for Cassette/Cassette Deck Use 42 GND 41 T1 40 39 PB EQ-VR REG VCA VCA T2 EQ-VR 38 37 7 PB out 8 VCC 9 36 35 600 LPF Rec.in 10 11 12 13 14 VCA Q/FF/FR PB out 34 33 Rec. in 32 31 30 29 VCA L-boost Fm/GH Rec. Rec. L-boost Fm/GH Q/FF/FR VOUT 15 28 VOUT IOUT 16 DAC 27 IOUT 26 Inj. Bias 1 17 Bias 2 18 FET 19 −VEE 20 IE 21 25 DA L DA L DA L DA L VDD DAC S/P S/P 24 D-GND Address 23 Shift register S-data 22 CLK 2 ICs for Cassette/Cassette Deck Use s Pin Descriptions Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Description Negative supply pin Playback amp. TAPE1 input Playback amp. TAPE2 input Playback amp. negative feedback input Playback amp. equalizer pin Playback amp. negative feedback output LPF pin Playback amp. output Positive supply pin Recording amp. non-inverting input Low frequency band boost pin DAC output pin(Addr.: 02) Recording equalizer amp. output Recording volume amp. input Recording amp. voltage output Recording amp. current output DAC output pin(Addr.: 0A) DAC output pin (Addr.: 09) FET drive current output Negative supply pin Erase current output Pin No. 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 Clock input Serial data input GND pin Positive supply pin Injector current pin AN7356NSC Description Recording amp. current output Recording amp. voltage output Recording volume amp. input Recording equalizer amp. output Low frequency band boost pin Recording amp. non-inverting input DAC calibration pin Playback amp. output LPF pin Playback amp. negative feedback output Playback amp. equalizer pin Playback amp. negative feedback input Playback amp. TAPE2 input Playback amp. TAPE1 input GND pin s Absolute Maximum Ratings Parameter Supply voltage Symbol VCC VDD Supply current Power dissipation *2 *1 Rating ±7.7 +7.7  443 −25 to +75 −55 to +150 Unit V ICC PD Topr Tstg *1 mA mW °C °C Operating ambient temperature Storage temperature Note) *1 : All items are at Ta = 25°C, except for the operating ambient temperature and storage temperature. *2 : Power dissipation of the IC single unit at Ta = 75°C. Use the IC under the conditions of not exceeding the allowable power dissipation curve. s Recommended Operating Range Parameter Supply voltage Symbol VCC VDD Range ±4.5 to ±6.5 (typ.) to ±7.2 4.5 to 5.0 to 5.5 3 Unit V AN7356NSC ICs for Cassette/Cassette Deck Use s Electrical Characteristics at VCC = ±6.5 V, Ta = 25°C Parameter Playback system Reference output level (0 dB) Reference output level (+6 dB) Reference output level (−6 dB) Level difference between tapes V1 GH GL ∆GT12 Symbol Conditions        Difference between 6 dB and 0 dB GH = data (2)−data (1) Difference between −6 dB and 6 dB GL = data (2)−data (3) Operation: The above reference output level (V1) difference between tapes VIN = −64 dBV, 30 kHz LPF on VIN = −64 dBV, 30 kHz LPF on IHF−A, Rg = 2.2 kΩ IHF−A, Rg = 2.2 kΩ THD = 3% Rg (CH2) = 220 Ω Rg (CH1) = 220 Ω Rg = 220 Ω DAC5 = (08) T2 mode T1 mode Rg = 2.2 kΩ f = 10 kHz f = 10 kHz GEQ70 = data (18)−data (17) f = 10 kHz GEQ50 = data (19)−data (17) f = 10 kHz GLPF = data (23)−data (19) Operation: The above output offset voltage (VOFF) difference between tapes fIN = 400 Hz, VIN = 6 dBV V (400 Hz) = 0 dB fIN = 10 kHz ∆GHL = data (32H)−data (32L) V(400 Hz) = 0 dB ∆GHL = data (33H)−data (33L) VIN = −12 dBV fIN = 25 kHz VIN = −30 dBV Min −3.4 5.0 10      2.0 60 60 −450 60 60 60  −7.3 −5.0 −8.5  −55 Typ −1.4 6.0 11.8 0 0.12 0.12 −69 −69 3.6       0 −5.3 −4.0 −7.5 −25 0 Max Unit Note VIN = −56 dBV, f = 1 kHZ, 30 kHz LPF on 0.6 7.0 13.5 1 0.4 0.4 −56 −56    +130    9 −3.3 −3.0 −6.5 −20 55 dBV dB dB dB % % dBV dBV dBV dB dB mV dB dB dB mV dBV Data(17) dB dB dB mV Data(18) Data(19) Data(23) Data(1) Data(2) Data(3) Total harmonic distortion (T1, 0 dB) THD1 Total harmonic distortion (T2, 0 dB) THD2 Output noise voltage (T1, 0 dB) Output noise voltage (T2, 0 dB) Maximum output level (0 dB) Cross talk (ch. R → ch. L) Cross talk (ch. L → ch. R) Output offset voltage (0 dB) Mute attenuation (T2) Mute attenuation (T1) Mute attenuation (T2) Pulse noise voltage EQ-VR (120 µ) EQ-VR (70 µ) EQ-VR (50 µ) 600 Hz LPF (50 µ) T1/T2 switching shock noise Recording system Reference output (EQ output) Middle and high frequency gain High frequency peak gain High Low High Low VEQ GHH ∆GHL GPH ∆GPL VNO1 VNO2 VOMX CT1 CT2 VOFF GM0 GM1 GM2 ∆VP VEQ120 GEQ70 GEQ50 GLPF ∆VT12 −3 3.0 10 18 18 −0.5 5.0 13 21 12 2.0 7.0 15 22 24 dBV dB Data (32H) Data (32L) dB Data (33H) Data (33L) 4 ICs for Cassette/Cassette Deck Use s Electrical Characteristics at VCC = ±6.5 V, Ta = 25°C (continued) Parameter Symbol Conditions V(25 kHz) = 0 dB ∆GHL = data (34W) −Data (34N) fIN = 44 kHz fIN = 11 kHz     VIN = −18 dBV ∆GTL = data (36H) fIN = 1 kHz −data (36L) (VR input) VIN = −14 dBV RLV = 10 kΩ VIN = −20 dBV RLV = l kΩ RLV = 10 kΩ RLV = 1 kΩ fIN = 1 kHz THD = 3% fIN = 1 kHz f(peak) = 25 kHz f = 35 kHz VIN = −18 dBV Min Typ AN7356NSC Max Unit Note Recording system (continued) High frequency peak bandwidth (10 kHz output) High frequency peak frequency DAC control Volume amp. gain (VOL output) Total harmonic distortion Wide NAR High Low High Low VOL GQW ∆GQL DfPH DfPL GTH ∆GTL THDRV 2.7 14 4.7 16 (30) (10) 19 18.3 0.3 0.3 3.2 1.5 0.45      6.7 18 (3B) (13) 21 20.3 0.8 0.8   2  +900 +25  +9 mV[rms] dB mV µA dB mV[p-0] V[rms] % dB Data(36H) Data(36L)  dB Data(34W) Data(34N) VIN = −30 dBV (2D) (0D) 17 16.3   2.2 1.0  40 −500 −25 60 −9 CURR THDRC Maximum output voltage Output noise voltage (curr. output) Input muting attenuation (EQ output) Output offset voltage (EQ output) Output offset voltage (curr. output) Output muting attenuation (VOL output) Pulse noise voltage (curr. output) Logic system Bias output (low) Bias control width Current consumption Analog +VCC Digital +VDD −VEE IVCC IVDD IVEE VBL ∆VBH VOL CURR VO-RV VO-RC VN-RC IMEQ VOF-EQ VOF-RC OMRV Rg = 0 Ω, RLV = 1 kΩ IHF-A fIN = 1 kHz, VIN = −6 dBV                 fIN = 1 kHz, VIN = 0 dBV DAC (GTL) = (10) VPN (RC) Rg = 0 Ω DAC09 = (00) DAC0A = (00) DAC09 = (FF), DAC0A = (FF) Data(46)−data(45) −2.5 4.2 −1.9 4.7 1.5 5.2 V V DC voltage Data(45) DC voltage Data(46) Without input Without input Without input 21 0.7 −40 28 1.5 −36 34 2.3 −31 mA mA mA DC DC DC 5 AN7356NSC s Terminal Equivalent Circuits Pin No. 1 Equivalent circuit  ICs for Cassette/Cassette Deck Use Description Negative supply pin Main circuit (−VEE) (analog system) Standard waveform DC −6.5 V 2 Playback amp. T1 in (R-ch.) Playback amp. Tape1 input DC 0 V Pins 2, 3, 40, 41 −VEE 3 Playback amp. T2 in (R-ch.) Playback amp. Tape2 input 4 Playback amp. NF in (R-ch.) Playback amp. negative feedback input Pins 4, 39 DC 0 V −VEE 5 +VCC NF switch (R-ch.) Playback amp. equalizer switching DC 0 V Pins 5, 38 −VEE −VEE 6 ICs for Cassette/Cassette Deck Use s Terminal Equivalent Circuits (continued) Pin No. 6 Equivalent circuit +VCC AN7356NSC Description Playback amp. NF out (R-ch.) Playback amp. negative feedback Standard waveform DC 0 V 47 Ω ouput 47 Ω 47 kΩ Pins 6, 37 −VEE 7 +VCC LPF-R 600 Hz LPF DC 0 V 27 kΩ −VEE Pins 7, 36 8 +VCC Playback amp. out (R-ch.) Playback amp. output DC 0 V 47 Ω 47 Ω 47 kΩ Pins 8, 35 −VEE 9  Positive supply pin Main circuit (+VCC) (analog system) DC 6.5 V 7 AN7356NSC s Terminal Equivalent Circuits (continued) Pin No. 10 Equivalent circuit Pins 10, 33 ICs for Cassette/Cassette Deck Use Description Rec. in(R) Rec. amp. (non-inverted) input +VCC Standard waveform DC 0 V 10 kΩ 100 Ω 11 Boost (R) Low frequency boost Pins 10, 33 6.2 kΩ DC 0 V 28.6 kΩ 10 kΩ 5.9 kΩ Pins 11, 32 12 D-GND 2 kΩ +VCC DM DAC output (Medium cut-off frequency control) 12 DC 0 V −VEE 13 +VCC EQ out (R) Rec. equalizer amp. output DC 0 V 47 Ω 47 Ω Pins 13, 30 −VEE 8 ICs for Cassette/Cassette Deck Use s Terminal Equivalent Circuits (continued) Pin No. 14 Equivalent circuit +VCC AN7356NSC Description VR in (R) Rec. volume amp. input Standard waveform DC 0 V 200 Ω Pins 14, 29 10 kΩ 15 +VCC VOUT(R) Rec. amp. voltage output DC 0 V 47 Ω 47 Ω Pins 15, 28 −VEE 16 IOUT(R) Rec. amp. current output Pins 16, 27 17 +VDD Bias 1 DAC output of address 0A  18 Pins 17,18 100 kΩ −VEE Bias 2 DAC output of address 09 9 AN7356NSC s Terminal Equivalent Circuits (continued) Pin No. 19 Equivalent circuit VCC ICs for Cassette/Cassette Deck Use Description FET FET drive current output Standard waveform  Pins 19, 21 47 kΩ D-GND 20  Supply pin Main circuit (−VEE) (digital system) DC −6.5 V 21 Refer to pin 19 IE Erase current output  22 D-GND Pins 22 23 D-GND SCLK Clock input DC 0 V I2L 23 10 kΩ −VEE S-data Serial data input 24  GND Main circuit (GND) (digital system) DC 0 V 25  Supply pin Main circuit (+VDD) (digital system) DC 5.0 V 26  Inj. I2L injector current pin Adjust the current by an external resister  10 ICs for Cassette/Cassette Deck Use s Terminal Equivalent Circuits (continued) Pin No. 27 Equivalent circuit Refer to pin 16 IOUT(L) Rec. amp. current output 28 Refer to pin 15 VOUT(L) Rec. amp. voltage output 29 Refer to pin 14 VR in (L) Rec. volume amp. input 30 Refer to pin 13 EQ out (L) Rec. equalizer amp. output 31 32  Refer to pin 11 N.C.        Boost (L) Low frequency boost 33 Refer to pin 10 Rec in (L) Rec. amp. (non-inverting) input 34 +VCC D-GND AN7356NSC Description Standard waveform Refer to pin 16 Refer to pin 15 Refer to pin 14 Refer to pin 13  Refer to pin 11 Refer to pin 10 ID For DAC calibration  34 22 kΩ 22 kΩ 22 kΩ −VEE 35 Refer to pin 8 Playback amp. out (L-ch.) Playback amp. output Refer to pin 8 36 Refer to pin 7 LPF-L 600 Hz LPF Refer to pin 7 37 Refer to pin 6 Playback amp. NF out (L-ch.) Playback amp. negative feedback output Refer to pin 6 11 AN7356NSC s Terminal Equivalent Circuits (continued) Pin No. 38 Equivalent circuit Refer to pin 5 ICs for Cassette/Cassette Deck Use Description NF switch (L-ch.) Playback amp. equalizer switching Standard waveform Refer to pin 5 39 Refer to pin 4 Playback amp. NF in (L-ch.) Playback amp. negative feedback input Playback amp. T2 in (L-ch.) Playback amp. Tape2 input Refer to pin 4 40 Refer to pin 3 Refer to pin 3 41 Refer to pin 2 Playback amp. T1 in (L-ch.) Playback amp. Tape1 input Refer to pin 2 42  GND Main circuit (GND) (analog system) DC 0 V Note) Above are typical values and may change by applied condition and dispersion etc. (VCC = ±6.5 V) s Technical Information • Data specification description 1. Data construction bit No. Data 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 0 0 0 0 Data DAC data 0 1 0 1 DAC address 1 Control contents Built-in switch over Built-in DAC LD: Load construction 0 D/S: Data select 12 { ICs for Cassette/Cassette Deck Use s Technical Information (continuded) • Data specification description (continuded) 2. Data communication system 2-wire system of Clock, Data AN7356NSC Clock Data Data bit 0 01 0 1 02 Addr. 0 03 Addr. 0 13 Data 1 14 D/S 1 15 D/S 1 16 LD Data are read when clock is rise up. Data end if data = "1" when clock is fall down. Transmit the empty data(0) of over the 5 clock between data when transmit data continuously. 3. Data timing, switching Characteristics 1) Data timing tW 90% 90% 10% tH 90% 10% 10% tLSUL tLHL 90% 10% tLSUH tW 90% 10% tLHH 90% Clock 10% tSU 90% Data 13 AN7356NSC s Technical Information (continuded) • Data specification description (continuded) 3. Data timing, switching characteristics (continued) 2) Switching characteristics ICs for Cassette/Cassette Deck Use Rating Parameter Minimum clock pulse width Data shift set-up time Data shift hold time Data latch set-up time Data latch hold time Data latch L set-up time Data latch L hold time Symbol tW tSU tH tLSUH tLHH tLSUL tLHL Min 5 3 3 3 3 3 3 Typ        Max        Unit µs µs µs µs µs µs µs Condition        4. Data format 1) Built-in switch bit No. Item 0 1 06 120 µ/70 µ 70 µ 120 µ 07 ×1/×2 ×2 ×1 08 T1/T2 T2 T1 09 ARM On* Off 10 Rec. play Play* Rec. 11 Stop On* Off 12 PB-adj. Off On 13 IE Off On 00 D/S Note) *: Initial setting is performed when supply turns on 2) Built-in DAC Addr. (00) (01) (02) 06 07 08 (00) to (20)* 09 10 11 12 13 D/S to (3F): FP (peak frequency characteristics) (00) to (08)* to (10): Q (peak Q) (00) to (08)* to (10): FM (middle frequency characteristics) (03) (04) (05) (06) (07) (08) (09) (0A) (MSB) Note) 1. *: Initial setting is performed when supply turns on 2. Inside ( ) are indicated hexadecimal number (00) to (00) to (00)* (20)* (20)* to (3F): GP (peak gain) to (3F): GM (middle frequency gain) 11 to (20) to (3F): GPB-R(playback gain R-ch.) (00)* to (20) to (3F): GPB-L(playback gain L-ch.) (00)* to (80) to (FF): GT-R (recording gain R-ch.) (00)* to (80) to (FF): GT-L (recording gain L-ch.) (00)* to (80) to (FF): Bias-2 (bias) (00)* to (80) to (FF): Bias-1 (bias) (LSB) 14 ICs for Cassette/Cassette Deck Use s Technical Information (continued) • Data specification description (continued) 5. Built-in switch mode table AN7356NSC VCA PB S1 T1 T2 S2 S3 On Off S7 Rec. L-boost Fm/GH S4 S5 Mute Q/FF/FR VCA S6 EQ-VR 600 LPF 5 38 6 37 08 2 41 11 STOP 3 40 10 R/P 4 39 7 36 8 35 Input 10 33 Output 11 32 S1 T1 input Mute 13 30 S2 14 29 S3 15 28 S4 PB output 16 27 S5 Rec.input Mute Off: 0 09 ARM Off: 1    PB Rec. PB T1/T2 T1 T2 T1: 1 T2: 0 T1: 1 T2: 0 T1: 1 T2: 0 T1: 1 T2: 0 T1: 1 T2: 0 T1: 1 T2: 0 T1: 1 T2: 0 T1: 1 T2: 0 2   DAC GTL (30) to (FF) (00) to (10) S6 Rec ouput On Mute T2 input T1/T2 Mute change-over Rec.: 1 On: 0 Off: 1 Off: 1 Play: 0 On: 0 Off: 1 Rec.: 1 On: 0 On: 0 Off: 1 Play: 0 On: 0 Note) *: Initial setting when supply on 1   DAC S4 GPB-R PB ouput (10) to (3F) (00) to (08) On Mute q Mute: 1 Mute: 1 *T2: 1 Mute: 0 Mute: 1 q q q q q q q q q q Off: 0 Mute: 1 Off: 0 Mute: 1 Mute: 1 Off: 0 Mute: 1 Off: 0 T1: 0 T2: 1 T1: 0 T2: 1 Off: 0 On: 1 Mute: 1 Off: 0 Mute: 1 Mute: 1 Mute: 1 *T2: 1 Mute: 0 Off: 0 q Mute: 1 P19 FET Drive Off 3 LPF    switch of playback system 12 S7 PB adj. LPF On On 1 1 Off Off 0 0 Note) Inside ( ) indicates hexadecimal number 4   Erase current 13 P21 IE IE drive On On 1 Off Off 0 Note) Inside ( ) indicates hexadecimal number 5   Equalizer volume switch-over of playback system 07 06 EQ ×1/×2 120/70 50 µ 70 µ 120 µ ×1 120 µ: 1 0 0 1 1 70 µ: 0 0 1 0 ×2 120 µ: 1 0 70 µ: 0 1 0 0 15 AN7356NSC s Application Circuit Example −VEE 2.2 kΩ 220 Ω 100 kΩ 680 pF PB in 100 kΩ 680 pF 120 Ω100 µF 6 800 pF 470 kΩ 10 000 pF R-ch. ICs for Cassette/Cassette Deck Use GND L-ch. 2.2 kΩ 220 Ω 100 kΩ 680 pF PB in 100 kΩ 120 Ω 100 µF 6 800 pF 470 kΩ 1 2 42 41 3 4 PB 5 6 600 LPF 40 39 680 pF PB EQ-VR REG VCA VCA EQ-VR 38 37 7 8 36 35 10 000 pF 1 µF 1 µF 0.47 µF 10 µF EQ out 10 µF S32 10 µF VR in PB out S30 10 µF Rec. in 600 LPF PB out VCC Rec. in 10 µF S29 0.47 µF 10 µF EQ out 10 µF VR in 10 µF 10 µF 1 kΩ 10 kΩ Rec. out 1 kΩ 100 kΩ S31 S35 9 Rec. Rec. 10 11 Q/FF/FR 1.2 kΩ 12 34 33 32 31 30 29 VCA Q/FF/FR L-boost L-boost Fm/GH Fm/GH 13 14 VCA 15 28 S36 1 kΩ 10 µF 10 kΩ 10 µF 16 Rec. out 27 10 µF 1 kΩ 100 kΩ Inj. 26 17 560 Ω DAC Bias 1 25 DA L DA L DA L DA 10 µF DAC Bias 2 FET +VCC −VEE +VCC IE 18 19 10 kΩ L 24 22 kΩ 22 kΩ S/P Address 20 21 10 kΩ 23 22 S/P Shift register 16