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Part: HA12203NT
Category:
Analog & Mixed-Signal Processing
-> Amplifiers
-> Audio/Power Amplifiers
Description: Audio Signal Processor For Cassette Deck ( Dolby B-type NR With Recording System )
Company: Hitachi Semiconductor (acquired by Renesas)
Datasheet: Download HA12203NT datasheet File size : 423 kB
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Datasheet text preview:
HA12203NT/HA12204NT
Audio Signal Processor for Cassette Deck (Dolby B-type NR with Recording System)
ADE-207-222B Target Specification 3rd Edition Jun. 1999 Description
HA12203NT is silicon monolithic bipolar IC providing Dolby noise reduction system* , music sensor system, REC equalizer system and each electronic control switch in one chip. Note: 1. Dolby is a trademark of Dolby Laboratories Licensing Corporation. A license from Dolby Laboratories Licensing Corporation is required for the use of this IC.
1
Functions
· Dolby B - NR* · REC equalizer · Music sensor · Pass amp.
2
× 2 channel × 2 channel × 1 channel × 2 channel
· Each electronic control switch to change REC equalizer, bias, etc. Note: 2. HA12204NT is not built-in Dolby noise reduction system.
Features
· REC equalizer is very small number of external parts and have 6 types of frequency characteristics 3 b u ilt- in .* · 2 types of input for PB, 1 type of input for REC. · 70µ - PB equalizer changing system built-in. · Dolby NR with dubbing double cassette decks. Unprocessed signal output available from recording out terminals during PB mode. · Provide stable music sensor system, available to design music sensing time and level. · Controllable from direct micro-computer output. · Bias oscillator control switch built-in. · NR ON / OFF and REC / PB fully electronic control switching built-in. · Normal-speed / high-speed, Normal / Crom / Metal* and PB equalizer fully electronic control switching built-in.
3
· Available to reduce substrate-area because of high integration and small external parts.
HA12203NT/HA12204NT
Note: 3. HA12204NT have 4 types of frequency characteristics.
Ordering Information
Standard Level
PB-OUT Product HA12203NT HA12204NT Package DP-42S Level 580mVrms REC-OUT Level 300mVrms Dolby Level 300mVrms -- Operating Voltage Range VCC (V) +6.0 to +7.5 VEE (V) 7.5 to 6.0 Note | VCC + VEE | < 1.0V
Function
Dolby B-NR ! Music Sensor ! !
Product HA12203NT HA12204NT
REC-EQ ! !
Pass Amp. ! !
REC / PB ! !
Selection ! !
Note: Depending on the employed REC / PB head and test tape characteristics, there is a rare case that the REC-EQ characteristics of this LSI can not be matched to the required characteristics because of built-in resistors which determined the REC-EQ parameters in this case, please inquire the responsible agent because the adjustment built-in resistor is necessary.
Rev.3, Jun. 1999, page 2 of 97
HA12203NT/HA12204NT
Pin Description, Equivalent Circuit
(VCC = ±7 V, Ta = 25ºC, No Signal, The value in the show typical value.)
Pin No. Terminal Name 2 AIN (R) Note V = GND Equivalent Circuit Pin Description PB A Deck input
V 100k GND
41 4 39 6 37 10 33 7
AIN (L) BIN (R) BIN (L) RIN (R) RIN (L) EQIN (R) EQIN (L) DET (R) V = VEE+2.7V
VCC
V = GND
PB B Deck input
V = GND
REC input
V = GND
REC equalizer input
Time constant pin for Dolby-NR
V
VEE
36 5
DET (L) BIAS1 V = VEE+0.6V Dolby bias current input
V
VEE
38
BIAS2
V = VEE+1.3V
REC equalizer bias current input
V
VEE
Rev.3, Jun. 1999, page 3 of 97
Others parts begin by ha
HA-1 HA-2 HA-3 HA-4 HA-5 HA-6 HA-7 HA-8 HA-9 HA-10
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