1995 Jun 19
6
Philips Semiconductors
Preliminary specification
I
2
C-bus controlled BTSC stereo/SAP decoder
TDA9850
PINNING
SYMBOL
PIN
DESCRIPTION
VEO
1
variable emphasis output for dbx
VEI
2
variable emphasis input for dbx
C
NR
3
capacitor noise reduction for dbx
C
M
4
capacitor mute for SAP
C
DEC
5
capacitor DC-decoupling for SAP
AGND
6
analog ground
DGND
7
digital ground
SDA
8
serial data input/output
SCL
9
serial clock input
V
CC
10
supply voltage (+9 V)
COMP
11
composite input signal
V
CAP
12
capacitor for electronic filtering of supply
C
P1
13
capacitor for pilot detector
C
P2
14
capacitor for pilot detector
C
PH
15
capacitor for phase detector
C
ADJ
16
capacitor for filter adjustment
CER
17
ceramic resonator
C
MO
18
capacitor DC-decoupling mono
C
SS
19
capacitor DC-decoupling stereo/SAP
C
R
20
adjustment capacitor, right channel
OUTR
21
output, right channel
C
SDE
22
capacitor SAP de-emphasis
SAP
23
SAP output
V
ref
24
reference voltage 0.5
×
(V
CC
−
1.5 V)
C
L
25
adjustment capacitor, left channel
C
ND
26
noise detector capacitor
OUTL
27
output, left channel
MAD
28
programmable address bit
C
TW
29
capacitor timing wideband for dbx
C
TS
30
capacitor timing spectral for dbx
C
W
31
capacitor wideband for dbx
C
S
32
capacitor spectral for dbx
Fig.2 Pin configuration.
fpage
TDA9850
MHA012
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
VEO
CS
CW
CTS
CTW
CND
CSDE
CL
CR
CSS
CMO
Vref
VEI
CNR
CM
CDEC
AGND
OUTL
SAP
OUTR
CER
MAD
DGND
SDA
SCL
VCC
COMP
VCAP
CP1
CP2
CPH
CADJ
