HA12141NT, HA12142NT, HA12170NT, HA12161FP, HA12162FP
Pin Description (VCC = 12 V, Ta = 25°C, no signal, the value in the table show typical
value.)
Pin No. Terminal
DC
DP SOP Name Zin Voltage Equivalent circuit
11
REC IN
75 kΩ
V /2
CC
Description
Recording input
30 28
33
28 26
22
44
55
PB IN
VCC
—
REF
—
C/B/OFF —
77
NR IN —
24 22
75 k Ω
V CC/2
Playback input
VCC
—
VCC/2
—
VCC/2
– 0.7V
20 k Ω
VCC/2
Power supply
Ripple filter
Mode control pin for NR
“H”→C
“M”→B
“L”→NR OFF
VCC /2 – 0.7
100 k Ω
GND
NR processor input
10 10 SS 1
—
VCC/2
21 19
Spectral skewing amp input
Rev.3, Jun. 1999, page 12 of 63