HA12179F Datasheet, PDF (8/40 Pages) Hitachi Semiconductor – Audio Signal Processer for Car Deck and Cassette Deck(Dolby B-type NR with PB Amp)

HA12179F
Electrical Characteristics (Ta = 25 °C Dolby Level 300 mVrms, V_CC = 9.0 V)
Item
Symbol
Min Typ Max Unit Test conditions
Remark
Quiescent current I_Q
6.5 12.0 17.5 mA
PB mode, NR-ON, 70µ,
MUTE-OFF No signal
Input amp. gain
GvIA TAI
21.2 22.2 23.2 dB
Vin = 0 dB, f = 1 kHz
B-type encode
ENC-2 k (1) 2.8 4.3 5.8 dB
Vin = -20 dB, f = 2 kHz
boost
ENC-2 k (2) 7.0 8.5 10.0
Vin = -30 dB, f = 2 kHz
ENC-5 k (1) 1.7 3.2 4.7
Vin = -20 dB, f = 5 kHz
ENC-5 k (2) 6.7 8.2 9.7
Vin = -30 dB, f = 5 kHz
Signal handling
V max
O
Signal to noise ratio S/N
12.0 13.0 — dB
64.0 70.0 — dB
THD = 1%, f = 1 kHz
*1
Rg = 5.1 kΩ, CCIR/ARM
THD
THD
— 0.05 0.3 %
Vin = 0 dB, f = 1 kHz
Channel
CT RL (1)
65.0 80.0 — dB
Vin = 0 dB, f = 1 kHz
TAI IN
separation
CT RL (2)
50.0 60.0 —
Vin = 0.6 mVrms, f = 1 kHz EQ IN
Mute attenuation MUTE ATT 70.0 85.0 —
Vin = 0 dB, f = 1 kHz
TAI IN
PB-EQ gain
Gv EQ 1 k
37.0 40.0 43.0 dB
Vin = 0.6 mVrms, f = 1 kHz 120 µ
Gv EQ 10 k (1) 33.0 36.0 39.0
Vin = 0.6 mVrms, f = 10 kHz
Gv EQ 10 k (2) 29.0 32.0 35.0
70 µ
PB-EQ maximum VoM
output
300 600 — mVrms THD = 1%, f = 1 kHz
*1
PB-EQ THD
THD-EQ
— 0.05 0.3 %
Vin = 0.6 mVrms, f = 1 kHz
Noise voltage level V_N
converted in input
— 0.7 1.5 µVrms Rg = 680 Ω DIN-AUDIO
MS sensing level V_ON (1)
V_ON (2)
MS output low level V_OL
MS output leak
I_OH
current
–36.0 –32.0 –28.0 dB
–18.0 –14.0 –10.0
— 1.0 1.5 V
— 0.0 2.0 µA
f = 5 kHz, Normal speed
f = 5 kHz, High speed
Control voltage
V_IL
V_IH
Note: 1 V_CC = 6.8 V
–0.2 —
3.5 —
1.0 V
5.3
Rev.1, Apr. 1994, page 8 of 40