TDA5731M Datasheet, PDF (3/17 Pages) NXP Semiconductors – Low power VHF, UHF and hyperband mixer/oscillator for TV and VCR 3-band tuners

Philips Semiconductors
Low power VHF, UHF and hyperband
mixer/oscillator for TV and VCR 3-band tuners
BLOCK DIAGRAM
Product specification
TDA5731M
handbook, full pagewidth
band A
input
15
BAND A
STAGE
MIXER
band C
inputs
RF
GND
band B
inputs
20
19 18 17
16
BAND C
STAGE
BAND B
STAGE
MIXER
MIXER
VP
14
local oscillator
amplifier outputs _{band switch}
input
13
12 11
DC
STABILIZER
LOCAL
OSCILLATOR
AMPLIFIER
ELECTRONIC
BAND
SWITCH
BAND A
OSCILLATOR
1
3
band A oscillator
tuned cicuit
BAND C
OSCILLATOR
246
band C oscillator
tuned cicuit
BAND B
OSCILLATOR
5
7
band B oscillator
tuned cicuit
TDA5731M
8
GND
IF
AMPLIFIER
9
10
IF outputs
MBE374
Fig.1 Block diagram.
1995 Mar 21
3