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EN 220
9.
DVDR980-985 /0X1
VHF/UHF television tuner
BLOCK DIAGRAM
RF i/p
RF o/p
PINNING
SYMBOL
AGC
TU
AS
SCL
SDA
n.c.
V
s
n.c
V
ST
n.c
IF1
GND
M1,M2,M3,M4 Mounting Tags (Ground)
Circuit-, IC Descriptions and List of Abbreviations
Tracking
Pre-
filters
filtering
1
2
9
Vt
AGC
(monitor)
** ADC option not available in NTSC versions
PIN
1
Gain Control Voltage
2
Tuning voltage
2
3
I
C-Bus Address Select
2
4
I
C-Bus Serial Clock
2
5
I
C-Bus Serial Data
6
Not Connected
7
PLL Supply Voltage +5V
8
Not Connected
9
Fixed tuning Supply Voltage +33V
10
Not connected
11
Asymmetrical IF Output
Gain
Tracking
controllable
filters
Pre-amplifiers
7
33V
Vcc
DESCRIPTION
UV1336K MK3
Mix-Osc
IF amp
11
TV IF o/p
AGC
Detector
PLL
3
4
5
8
ADC**
AS
SCL
SDA
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