BD3871FS Datasheet, PDF (2/3 Pages) Rohm – Sound processor for CD radio cassette player

Electrical characteristics
(Unless otherwise noted ; Ta=25˚C, Vcc=8V, f=1kHz, Vi=50mVrms, RL=10kΩ , Rg=600Ω ,
INPUT GAIN=24dB, Vol=0dB, bass,treble=0dB, surround=OFF)
Parameter
Symbol Min. Typ. Max.
Unit
Conditions
Circuit current
Output voltage gain
Total harmonic distortion
IQ
—
8
21
GV
22
24
26
THD —
0.01
0.1
mA No signal
dB
% VOUT=1Vrms, Bw=400~30kHz
Maximum output voltage
Vomax 1.6
2.1
—
Vrms THD=1%, Bw=400~30kHz
Residual noise voltage
Vno
—
4.5
15 µVrms Rg=0Ω , Vol=–•, Bw=IHF–A
Output residual noise voltage ^{Vmno —}
40
80 µVrms _{Rg=0Ω , Vol=0dB, Bw=IHF–A}
Volume control range
Bass control range
Treble control range
Surround gain (Antiphase)
VRI –90
GB
+12
–16
TB
+10
–14
Vsur
8
–87
+14
–14
+12
–12
10
–84
+16
–12
+14
–10
12
dB VIN=1Vrms, 1dB/STEP
dB VIN=100mVrms, 2dB/STEP
dB VIN=100mVrms, 2dB/STEP
dB VIN=100mVrms
Application Circuit
0.33 µ 0.0022 µ 0.0022 µ
5.6K
0.1µ 0.1µ
390K
OUT1 OUT2 Vcc DATA CLOCK
LATCH
5.6K
0.1µ 0.1µ
10µ 10µ
390K
+
+
24 23 22 21 20 19 18 17 16 15 14 13
Treble1 Treble2
fc=8kHz fc=8kHz
Bass 2
f0=80Hz
Bass1
f0=80Hz
Logic
Vcc/2
Vcc/2
0dB
~
–87dB
–•
Vcc/2 Vcc/2
1
2
3
+
10µ
+
10µ
Vcc/2
BD3871FS
50k
50k
50k
50k
50k
50k
4
5
6
7
8
9
10
11 12
+
+
+
+
+
+
+
10µ 10µ 10µ _{10µ 10µ} 10µ 47µ
4.7K 4.7K
A1 A2 B1 B2 C1 C2
UNIT
RESISTANCE : Ω
CAPACITOR : F