Specifications

DTT 7685x
SBU Technology – Tuners ATSC half NIM with Ch 3 / 4 modulator
20 Apr 2007
Preliminary Specification Page 2 / 29
Table of content
1. Brief description................................................................................................. 4
2. Block diagram .................................................................................................... 4
3. Mechanical Specification .................................................................................. 5
3.1 Horizontal Mounting LH (DTT 76850).................................................................. 5
3.2 Vertical Mounting (DTT 76851)............................................................................ 6
4. Pin Definitions .................................................................................................... 7
5. Operational Conditions ..................................................................................... 8
6. Standard Test Conditions ................................................................................. 8
7. Electrical Characteristics.................................................................................. 9
7.1 RF Section............................................................................................................ 9
7.2 Ch 3/ 4 modulator performance ......................................................................... 10
8. Application Information................................................................................... 11
8.1 Tuner I2C control ............................................................................................... 11
9. Electrostatic Discharge ................................................................................... 16
9.1 Test .................................................................................................................... 16
9.2 Handling ............................................................................................................. 16
10. Reliability Test Procedure & Conditions ....................................................... 17
10.1 Heat Load Test................................................................................................... 17
10.2 Humidity Load Test ............................................................................................ 17
10.3 Cold Test ............................................................................................................ 18
10.4 Thermal Shock ................................................................................................... 18
10.5 Temperature Cycle Test..................................................................................... 18
10.6 Vibration Test ..................................................................................................... 19
10.7 Drop Test............................................................................................................ 19
10.8 Life Test.............................................................................................................. 19
10.9
Reliability Test Requirement .............................................................................. 20
11. Appendix........................................................................................................... 21
11.1 Packaging........................................................................................................... 21
11.2 Identification / Traceability ................................................................................. 21
11.3 RF AGC Slope (Typical Curve).......................................................................... 22
11.4 Digital IF AGC Slope .......................................................................................... 25