BH7801BK View Datasheet(PDF) - ROHM Semiconductor
Part Name
Description
Manufacturer
BH7801BK Datasheet PDF : 14 Pages
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Video ICs
BH7801BK
•Pin descriptions
Pin No.
Pin name
Function
Pin voltage
I / O circuit
2, 1, 3 TUNER IN L, R, M TUNER input (L, R, M)
0.0V
150kΩ
4
Hi-Fi ALC
ALC time constant setting for Hi-Fi audio
0.0V
EF (NPN) ~ 200Ω
5
SCL
CLOCK input for I2C BUS control
—
B (PNP)
6
SDA
DATA input for I2C BUS control
—
B (PNP)
7
GNDD
GND for I2C BUS control
—
—
8
FSC IN
fSC input for VCO and BPF adjustment
0.0V
200kΩ
9, 25 NR TC L, R
PNR attack and recovery time setting.
Attack R: 530Ω, Recovery R: 6.5kΩ
– 5.0V
—
10, 24 WTNG L, R
Waiting characteristic, treble time constant
(External C = 0.022µF)
0.0V
—
11, 23 NR EMPH L, R
NR emphasis time constant setting
(External C = 0.0047µF)
0.0V
—
12, 22 DC FB L, R
PNR operating reference potential point
0.0V
11.5kΩ
13 FM PB IN
ENVE OUT
14 / ADJ FLAG
/ Hi-Fi DET
Playback FM input 660mVP-P Typ.
Input coupling capacitor (GND ~ VCC)
0.0V
FM Lch signal component envelope output
EE: 0.8V
/ Hi-Fi DET output / ADJ FLAG output for ADJ PB: 1.0V
100kΩ
EE: 50kΩ
PB, ADJ: EF (NPN)
15 GNDM
GND for PNR, MODEM and BPF
0.0V
—
16 BPF f0 ADJ
Center frequency adjustment for FM BPF
1.9V
EF (NPN) ~ 200Ω
17 VCO f0 ADJ
VCO control current setting
2.5V
EF (NPN)
18 VCCM
VCC for MODEM and BPF
5.0V
—
19 FM ALC
FM ALC time constant setting
0.0V
EF (NPN) ~ 2.5kΩ
20 AHSWP IN
Audio head switching pulse input
—
B (PNP)
21 FM REC OUT
EE: recording FM output, sine wave output
PB: FM BPF output monitor
EE: 3.3V EF (NPN) ~ 200Ω
26 NORMAL IN
Normal input
0.0V
50kΩ
27 MIX ALC
ALC time constant setting for mixer amplifier.
Attack and recovery time setting
– 5.0V
EF (NPN) ~ 500Ω
28 MIX OUT
Mixer amplifier output for RF converter
0.0V
EF (NPN)
30, 29 LINE L, R OUT
Line output
0.0V
330Ω
31 NORMAL OUT
Normal output
0.0V
EF (P-P)
32 MUTE CTRL
Line output mute control input
—
3kΩ ( > 2.5V)
34, 33 LINE2 L, R IN
LINE2 input (L, R)
0.0V
88kΩ
35 VREFP
VCC / 2 reference voltage
(power on detect and pre-charge functions)
2.5V
10kΩ
36
VCC
VCC regulator
5.0V
—
37 ERP
VCC regulator error output
5.0V
C (NPN)
38 GND
I / O switch GND
0.0V
—
39
VEE
VEE regulator
– 5.0V
—
41, 40 LINE1 IN L, R
LINE1 input (L, R)
0.0V
88kΩ
42 ERM
VEE regulator error output
– 5.0V
C (PNP)
44, 43 BS IN L, R
BS input (L, R)
∗ I / O circuit; EF: emitter follower, P-P: push pull, B: base, and C: collector
All numerical values are standardized values.
0.0V
88kΩ
3
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