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HA12141NT Dataheets PDF



Part Number HA12141NT
Manufacturers Hitachi Semiconductor
Logo Hitachi Semiconductor
Description Dolby B- and C-Type Noise Reduction
Datasheet HA12141NT DatasheetHA12141NT Datasheet (PDF)

HA12141NT, HA12142NT, HA12170NT, HA12161FP, HA12162FP Dolby B- and C-Type Noise Reduction System ADE-207-036B (Z) 3rd Edition Jun. 1999 Description HA12141/142NT, HA12170NT, HA12161/162FP are silicon monolithic bipolar IC series providing dual channel Dolby B- and C-type noise reduction* in one chip. Functions • Dual Dolby B/C-type NR processor • NR OFF/B/C control switch • MPX by-pass / Encode / Decode (MPX OFF / REC / PB) control switch • MPX Filter Drive Circuit Features • Low external par.

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HA12141NT, HA12142NT, HA12170NT, HA12161FP, HA12162FP Dolby B- and C-Type Noise Reduction System ADE-207-036B (Z) 3rd Edition Jun. 1999 Description HA12141/142NT, HA12170NT, HA12161/162FP are silicon monolithic bipolar IC series providing dual channel Dolby B- and C-type noise reduction* in one chip. Functions • Dual Dolby B/C-type NR processor • NR OFF/B/C control switch • MPX by-pass / Encode / Decode (MPX OFF / REC / PB) control switch • MPX Filter Drive Circuit Features • Low external parts count • R-C spectrum skewing network using passive component • External capacitors are E-3 series (small values) • Several time constant capacitors built into the IC • Separate REC/PB input and output. Unprocessed signal output available in the encode and decode modes. • Common PCB pattern is available with HA12134A series (Dolby B NR), because these ICs offer similar pin layout. • 3 type PB-out level (300 mV, 580 mV, 775 mV) • 2 type package (DP-30S, FP-28D) • Wide range of operating supply voltage (7.5 V to 16 V) * Dolby is a trademark of Dolby Laboratories Licensing Corporation. A license from Dolby Laboratories Licensing Corporation is required for the use of this IC. HA12141NT, HA12142NT, HA12170NT, HA12161FP, HA12162FP Ordering Information Type No. HA12141NT HA12142NT HA12170NT HA12161FP HA12162FP Package DP-30S DP-30S DP-30S FP-28D FP-28D Dolby Level PB-OUT Level 300 m Vrms 300 m Vrms 300 m Vrms 580 m Vrms 300 m Vrms 775 m Vrms 300 m Vrms 300 m Vrms 300 m Vrms 580 m Vrms PB-IN Level 30.0 mVrms REC-OUT Level 300 m Vrms 300 m Vrms 300 m Vrms — — Remark — — — PB-mode only ↓ IA-OUT Level (PB) 300 mVrms Notes: 1. The common specifications are shown below. REC-IN Level 42.9 mVrms IA-OUT Level (REC) 429 mVrms 2. The values listed above show approximate values to be offered Dolby Level at TP. Absolute Maximum Ratings (Ta = 25°C, unless otherwise specified) Item Supply voltage Power dissipation Operating temperature Storage temperature Symbol VCCmax PD Topr Tstg Rating 16 400 –40 to +85 –55 to +125 Unit V mW °C °C Ta ≤ 85°C Note Rev.3, Jun. 1999, page 2 of 63 HA12141NT, HA12142NT, HA12170NT, HA12161FP, HA12162FP Electrical Characteristics (HA12141NT, HA12142NT, HA12170NT) (Ta = 25°C, VCC = Vopr-typ, unless otherwise specified) (Dolby Level = 300 mVrms at TP (REC-mode: TP2, TP4 PB-mode: TP1, TP3)) Test conditions Item Operating voltage Symbol HA12141NT Vopr HA12142NT HA12170NT Quiescent current Input amp gain ICC Gv (IA REC) Min 7.5 9.5 12.0 — 18.0 Typ 12.0 12.0 14.0 12.0 20.0 20.0 4.3 3.2 5.9 19.6 11.8 13.0 13.0 13.0 Max 16.0 16.0 16.0 — 22.0 22.0 5.8 4.7 7.9 21.6 13.8 — — — Unit R/P NR V V V mA dB dB dB dB dB dB dB dB dB dB R R P R R R R R R OFF — OFF 1 k OFF 1 k B B C C C 2k 5k 1k 1k 700 Vin = –20dB Vin = –20dB Vin = –20dB Vin = –60dB Vin = –30dB THD = 1% VCC = 7.5V VCC = 9.5V VCC = 12V No signal Vin = 0dB — — f (Hz) — Gv (IA PB) 18.0 B–type NR Encode boost C–Type NR Encode boost B-ENC-2 k 2.8 B-ENC-5 k 1.7 C-ENC-1 k 3.9 (1) C-ENC-1 k 18.1 (2) .


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