TDA6051-5X
TDA6051-5X is Video IF manufactured by Siemens Semiconductor Group.
Features q Active multistandard video IF with FPLL demodulator q 12-MHz bandwidth q MAC state q Picture carrier output for TDA 6048-5X
TDA 6051-5X
Bipolar IC
P-DSO-20
Type TDA 6051-5X
Ordering Code Q67000-A5125
Package P-DSO-20 (SMD)
Functional Description
Multistandard video IF with FPLL and IF-carrier output to work in conjunction with TDA 6048-5X.
Application Multistandard TV/VTR and cable converters with mono or stereo applications.
Semiconductor Group
TDA 6051-5X
Circuit Description
The IF circuit consists of a four-stage capacitively coupled and symmetrically designed controlled amplifier and a real synchronous demodulator with a FPLL-carrier regeneration. Two IF inputs can be selected for applications with different SAWs. The main performance of the device is the very low differential phase DP and gain DG bined with an excellent intermodulation ratio. The positive video output is used to derive the IF and tuner control voltage. The AGC threshold is set by means of a potentiometer. Dependent on the modulation polarity the video signal and the AGC are switched over. MAC state can be selected by an additional signal.
Pin Functions
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Function IF input 1a IF input 1b IF switch Tuner AGC output Tuner AGC threshold Main AGC-time constant Mean value AGC-time constant Positive/negative modulation switch Video carrier output Video carrier output FPLL-VCO (2 × video carrier) FPLL-VCO (2 × video carrier) FPLL-loop filter FPLL-loop reference Video output MAC-standard switch
+ VS supply voltage
Ground IF input 2a IF input 2b
Semiconductor Group
TDA 6051-5X
Block Diagram Semiconductor Group
Absolute Maximum Ratings
TA = 0 to 70 ˚C
Parameter
Symbol
Supply voltage Junction temperature Storage temperature Thermal resistance (system-air)
V17 Tj Tstg Rth SA
Operating Range
Supply voltage Supply voltage delayed tuner AGC IF-frequency range Ambient temperature during operation
V17 V5 f...