HA12134A Datasheet, PDF (4/27 Pages) Hitachi Semiconductor – Dolby B-Type Noise Reduction System

HA12134A, HA12135A, HA12136A
Electrical Characteristics (Ta = 25°C, V_CC = 12 V, Unless otherwise specified.)
Item
Symbol Min Typ Max Unit Test conditions
Operating voltage HA12134A Vope 6.5 12.0 16.0 V
Enable functional operations
HA12135A
8.0 12.0 16.0
HA12136A
9.5 12.0 16.0
Quiescent current
Voltage gain of
input amp
I
Q
HA12134A G
VIA
HA12135A
—
7
—
mA
21.0 23.0 25.0 dB
24.5 26.5 28.5
No signal, REC NR-ON
Pin 1→Pin 6
(Pin 16→Pin 11)
HA12136A
26.5 28.5 30.5
Vout = 0 dB, f = 1 kHz
NR encode boost
V 8 (9) (NR ON)
ENC-1.4 2.9
4.4
5.9
dB
f = 1.4 kHz
k (1)
V 8 (9) (NR OFF) = –20 dB
V 8 (9) (NR OFF)
ENC-1.4 6.0
7.5
9.0
dB
f = 1.4 kHz
k (2)
V 8 (9) (NR OFF) = –30 dB
ENC-5 k 1.7
3.2
4.7
dB
f = 5 kHz
(1)
V 8 (9) (NR OFF) = –20 dB
ENC-5 k 6.7
8.2
9.7
dB
f = 5 kHz
(2)
V 8 (9) (NR OFF) = –30 dB
ENC-10 –1.1 0.4
1.9
dB
f = 10 kHz
k (1)
V 8 (9) (NR OFF) = 0 dB
ENC-10 9.8
k (2)
10.4 11.8 dB
f = 10 kHz
V 8 (9) (NR OFF) = –40 dB
T.H.D (REC)
T.H.D —
(REC)
0.05 0.3 %
f = 1 kHz
V 8 (9) (NR ON) = 0 dB
Signal handling HA12134A Vomax 12.0 13.0 —
HA12135A (REC)
HA12136A
Signal/noise ratio
(REC)
S/N
62.0 68.0 —
(REC)
dB
f = 1 kHz,
V_CC = 6.5 V
T.H.D = 1% V_CC = 8.0 V
V_CC = 9.5 V
dB
Rg = 5.1 kΩ
weighted
CCIR/ARM
Crosstalk (ENC)
(Pin 8 – Pin 9)
Control voltage for
REC/PB
CT R→L 52.0 60.0 —
L→R
dB
f = 1 kHz
NR OFF
REC
2.5
—
V
V
CC
REC/PB
22 k
12
Measure
PB
0.0 —
0.5
Control voltage for
NR ON/OFF
ON
2.5 —
V
V
CC
NR
Measure
ON/OFF
5
22k
OFF
0.0
—
0.5
Channel balance
∆G_VIA
–1.0 0.0
1.0
dB
Rev.3, Jun. 1999, page 4 of 27