Hitachi C28W440N, Service Manual

Page: 18 / 63

18
16.2.3.
General Description of
UV1316:
The UV1316 tuner belongs to the UV 1300 family of tuners, which are designed to meet a wide range of
applications.
It is a combined VHF, UHF tuner suitable for CCIR systems B/G, H, L, L’, I and I’. The low IF output impedance
has been designed for direct drive of a wide variety of SAW filters with sufficient suppression of triple transient.
16.2.4.
Features of UV1316:
•
Member of the UV1300 family small sized UHF/VHF tuners
•
Systems CCIR: B/G, H, L, L’, I and I’; OIRT: D/K
•
Digitally controlled (PLL) tuning via I2C-bus
•
Off-air channels, S-cable channels and Hyperband
•
World standardised mechanical dimensions and world standard pinning
•
Compact size
•
Complies to “CENELEC EN55020” and “EN55013”
PINNING PIN VALUE
1. Gain control voltage (AGC) : 4.0V, Max:4.5V
2. Tuning voltage
3. I²C-bus address select : Max:5.5V
4. I²C-bus serial clock : Min:-0.3V, Max:5.5V
5. I²C-bus serial data : Min:-0.3V, Max:5.5V
6. Not connected
7. PLL supply voltage : 5.0V, Min:4.75V, Max:5.5V
8. ADC input
9. Tuner supply voltage : 33V, Min:30V, Max:35V
10. Symmetrical IF output 1
11. Symmetrical IF output 2
16.3.
TEA6415C:
16.3.1.
General Description:
The main function of the TEA6415C is to switch 8 video input sources on the 6 outputs.
Each output can be switched to only one of the inputs whereas but any same input may be connected to several
outputs.
All switching possibilities are controlled through the I2C-bus.
16.3.2.
Features:
•
20 MHz Bandwidth