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HA12179F Dataheets PDF



Part Number HA12179F
Manufacturers Hitachi Semiconductor
Logo Hitachi Semiconductor
Description Audio Signal Processer
Datasheet HA12179F DatasheetHA12179F Datasheet (PDF)

HA12179F Audio Signal Processer for Car Deck and Cassette Deck (Dolby B-type NR with PB Amp) ADE-207-136 1st Edition Apr. 1994 Description HA12179F is silicon monolithic bipolar IC providing Dolby noise reduction system*, line mute, music sensor and PB equalizer system in one chip. Functions • Line mute • PB equalizer • Dolby B-NR • Music sensor × 2 channel × 2 channel × 2 channel × 1 channel Features • Different type of PB equalizer characteristics selection (normal/chrome or metal) is avail.

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HA12179F Audio Signal Processer for Car Deck and Cassette Deck (Dolby B-type NR with PB Amp) ADE-207-136 1st Edition Apr. 1994 Description HA12179F is silicon monolithic bipolar IC providing Dolby noise reduction system*, line mute, music sensor and PB equalizer system in one chip. Functions • Line mute • PB equalizer • Dolby B-NR • Music sensor × 2 channel × 2 channel × 2 channel × 1 channel Features • Different type of PB equalizer characteristics selection (normal/chrome or metal) is available with fully electronic control switching built-in. • Line mute ON/OFF is available. • Changeable to Foward, Reverse-mode for PB head with fully electronic control switching built-in. • Available to change music sensing level by external resistor. • Music sensing level selection is available with fully electronic control switching built-in. • Available to change frequency response of music sensor. • NR-ON/OFF and REC/PB fully electronic control switching built-in. • Pin compatible of HA12163 series except for 4 and 39 Pins. * Dolby is a trademark of Dolby Laboratories Licensing Corporation. A license from Dolby Laboratories Licensing Corporation is required for the use of this IC. HA12179F Ordering Information Package HA12179F QFP 56 PB-OUT level 387.5 mVrms REC OUT level 300 mVrms Dolby level 300 mVrms PB-OUT level above shown is typical value when adjusting Dolby level at Rec-out with NR-off mode. Rev.1, Apr. 1994, page 2 of 40 LINE OUT (L) RECOUT (L) PB OUT (L) + 41 MUTE 27 MS GND 26 25 ×1 EQOUT (L) 40 RIP 39 38 37 36 35 34 33 32 Block Diagram 42 43 FFI 31 30 29 NOI MS VREF 28 120/70 44 DOLBY B-NR 45 – + 46 24 FF NO F/R 47 VRER (L) + VCC 48 49 GND + – DET MSV 23 CC VCC 22 21 D GND 20 MSOUT 50 GND MS AMP. ×1 LPF – + To Microcomputer 51 19 DOLBY B-NR 18 17 16 MUTE 15 4 5 6 7 8 9 10 11 12 13 14 MS GV F/R 120µ/70µ MUTE ON/OFF REC/PB NR ON/OFF 52 VREF (R) F/R 53 + 54 – 55 120/70 2 BIAS 3 56 1 EQOUT (R) PBOUT (R) LINEOUT (R) RECOUT (R) Rev.1, Apr. 1994, page 3 of 40 HA12179F HA12179F Pin Discription (VCC = 9 V Single supply, Ta = 25°C, No signal, The value in the table show typical value.) Pin No. 2 41 Terminal name TAI Zin DC voltage Equivalent circuit Description Tape input 100 kΩ VCC/2 VCC/2 5 38 25 10 MUI Mute circuit input MSI NR DET — 2.5 V Music sensor rectifier input Time constant pin for rectifier 33 3 BIAS — 0.28 V Reference current input GND 24 MS DET — VCC Time constant pin for rectifier GND 40 RIP — VCC/2 Ripple filter Rev.1, Apr. 1994, page 4 of 40 HA12179F Pin Discription (VCC = 9 V Single supply, Ta = 25°C, No signal, The value in the table show typical value.) (cont) Pin No. 43 56 Terminal name EQ OUT Zin — DC voltage Equivalent circuit VCC/2 VCC Description Equalizer output GND 6 37 30 PB OUT Play back (Decode) output MS VREF Reference voltage buffer output Music sensor amp. output Reference voltage buffer output 26 47 52 12 31 4 39 44 MA OUT VREF REC OUT Recording (Encode) output LINE OUT Mute circuit output EQ OUT-M — VCC/2 VCC Equalizer output (Metal) GND 55 Rev.1, Apr. 1994, page 5 of 40 HA12179F Pin Discription (VCC = 9 V Single supply, Ta = 25°C, No signal, The value in the table show typical value.) (cont) Pin No. 21 Terminal name MS OUT Zin — DC voltage Equivalent circuit — MS VCC Description Music sensor output to MPU D GND 22 23 20 27 49 50 48 51 VCC MS VCC D GND MS GND GND — VCC 0.0 V — Power supply — — Digital (Logic) ground Music sensor ground Ground FIN — VCC/2 PB-EQ input for forward 46 53 45 54 RIN PB-EQ input for reverse NFI Negative feedback terminal of PBEQ amp. 28 NOI Negative feedback input for normal speed Negative feedback input for FF or REW 29 FFI Rev.1, Apr. 1994, page 6 of 40 HA12179F Pin Discription (VCC = 9 V Single supply, Ta = 25°C, No signal, The value in the table show typical value.) (cont) Pin No. 14 Terminal name ON/OFF Zin DC voltage Equivalent circuit Description Mode control input 22k 122 kΩ — 100k D GND GND 15 16 17 18 19 1 7 8 9 11 13 32 34 35 36 42 REC/PB MUTE 120 µ/70 µ F/R MS GV NC No connection Absolute Maximum Ratings Item Supply voltage Power dissipation Operating temperature Storage temperature Symbol VCC max PT Topr Tstg Ratings 16 400 –40 to +85 –55 to +125 Unit V mW °C °C Ta ≤ 85 °C Note Note: Operating voltage range is VCC = 6.8 to 16.0 V Rev.1, Apr. 1994, page 7 of 40 HA12179F Electrical Characteristics (Ta = 25 °C Dolby Level 300 mVrms, VCC = 9.0 V) Item Quiescent current Input amp. gain B-type encode boost Symbol IQ GvIA TAI ENC-2 k (1) ENC-2 k (2) ENC-5 k (1) ENC-5 k (2) Signal handling VO max THD CT RL (1) CT RL (2) MUTE ATT Gv EQ 1 k Min 6.5 21.2 2.8 7.0 1.7 6.7 12.0 64.0 — 65.0 50.0 70.0 37.0 Typ 12.0 22.2 4.3 8.5 3.2 8.2 13.0 70.0 0.05 80.0 60.0 85.0 40.0 36.0 32.0 600 0.05 0.7 Max 17.5 23.2 5.8 10.0 4.7 9.7 — — 0.3 — — — 43.0 39.0 35.0 — 0.3 1.5 mVrms THD = 1%, f = 1 kHz % µVrms Vin = 0.6 mVrms, f = 1 kHz Rg = 680 Ω DIN-AUDIO.


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