HA12167FB Datasheet, PDF (67/73 Pages) Hitachi Semiconductor – Audio Signal Processor for Cassette Deck (Deck 1 Chip)

HA12167FB/HA12169FB
Equalizer Quality Factor vs. R_FQ
15
EQin EQout
Vcc = 14 V
EQ.DAC = 0 Step
Vin = - 50 dBs
10
RF/Q =
: 390 k
: 200 k
: 100 k
: 51 k
: 24 k
: 12 k
5
0
5 k 10 k
30 k
100 k 300 k
1M
R_FQ ( )
Equalizer Gain vs. DAC Step
31
V_CC = 14 V
EQin EQOUTout
f = 1 kHz
Vin = –26dBs
26
21
16
0
10
20
30
DAC Step
Rev.3, Jun. 1997, page 67 of 73