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Part: HA12206NT
Category:
Analog & Mixed-Signal Processing
-> Amplifiers
-> Audio/Power Amplifiers
Description: Audio Signal Processor For Cassette Deck
Company: Hitachi Semiconductor (acquired by Renesas)
Datasheet: Download HA12206NT datasheet File size : 423 kB
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Datasheet text preview:
HA12206NT
Audio Signal Processor for Cassette Deck
ADE-207-198B (Z) 3rd Edition Jun. 1999 Description
HA12206NT is silicon monolithic bipolar IC providing music sensor system, ALC, REC equalizer system and each electronic control switch in one chip.
Functions
· REC equalizer · Line Amp. × 2 channel × 2 channel
· ALC (Automatic Level Control) · MS (Music Sensor) · Each electronic control switch to change REC equalizer, bias, etc. · REC mute
Features
· REC equalizer is very small number of external parts, built-in 2 types of frequency characteristics. · Correspondence with normal position (TYPE I) / high position (TYPE II). · TYPE I / TYPE II and PB equalizer fully electronic control switching built-in. · Controllable from direct micro-computer output. · Available to reduce substrate-area because of high integration and small external parts.
HA12206NT
Pin Description, Equivalent Circuit (VCC = 7.0V, VEE = 7.0V, Ta = 25°C, No signal, The value in the table show typical value.)
Pin No. 2 Pin Name PB-Ain (R) Note V=0 Equivalent Circuit Pin Description A Deck PB input
V 100k
29 4 27 5 26 9 22 12 3
PB-Ain (L) PB-Bin (R) PB-Bin (L) REC-in (R) REC-in (L) EQ-in (R) EQ-in (L) MIMS AB out (R) V=0
14.9k 10.6k V
B Deck PB input
REC input
Equalizer input
MS Gain control Time constant for NAB standard
28 6
AB out (L) ATT (R) V=0
V
Variable impedance for attenuation
25 7
ATT (L) RPOUT (R)
VCC
REC or PB output
VEE
24
RPOUT (L)
Rev.3, Jun. 1999, page 2 of 32
HA12206NT
Pin Description, Equivalent Circuit (VCC = 7.0V, VEE = 7.0V, Ta = 25°C, No signal, The value in the table show typical value.) (cont)
Pin No. 8 Pin Name ADD in (R)
100k 23 100k 100k
Note
Equivalent Circuit
Pin Description Adder input
8 100k 100k
23 10
ADD in (L) EQOUT (R) V = 0V Equalizer output
100k V
21 11
EQOUT (L) IREF V = 1.2V Equalizer reference current input
V
13
DET MS
V = VCC 4.2V
V
Time constant for rectifier
15 16
DET ALC MS
V = 2.3V MS output
Rev.3, Jun. 1999, page 3 of 32
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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