TDA5630BT Datasheet, PDF (12/24 Pages) NXP Semiconductors – 9 V VHF and UHF mixer/oscillator for TV and VCR cable tuners

Philips Semiconductors
9 V VHF and UHF mixer/oscillator for TV
and VCR cable tuners
Product specification
TDA5630BT
handbook, full pagewidth
C29 Vt
R7
C25
C26
short-
circuit ^R6
or R6⁽¹⁾
C2 R3
R2 _C3
R1
C1
or C4⁽¹⁾ _L1
or L4⁽¹⁾
D2 L3
D1
or D3⁽¹⁾
C28
R12 R4
L2
C30
MEASUREMENT
NETWORK
L7⁽²⁾
L6⁽²⁾
C24⁽²⁾
IF output
50 Ω
spectrum
analyser
C5 or C9⁽¹⁾ C7 or C11⁽¹⁾
C6
C8
C10
16
14
15
13
12
11
C22
C23
10
9
BAND A
OSCILLATOR
BAND C
OSCILLATOR
TDA5630BT
IF
AMPLIFIER
MIXER
BAND A
STAGE
4
C16
50 Ω
MIXER
ELECTRONIC
BAND SWITCH
BAND C
STAGE
1
2
C12
C13
LOCAL
OSCILLATOR
AMPLIFIER
3
6
7
C19
C20
HYBRID
ANZAC-183-4
50 Ω
50 Ω
HYBRID
ANZAC-183-4
50 Ω
50 Ω
output
DC
STABILIZER
5
8
MBE320
C17
C21
L5
C18
A
9V
R10
to
pre-stages
C
5V
(1) There are two applications for the band A oscillator:
- from 80 to 216 MHz: the band A tank circuit is built with C1, D1, L1, C5 and C7. R6 is a short-circuit.
- from 180 to 506 MHz: the band A tank circuit is built with R6, C4, D3, L4, C9 and C11.
(2) L6, L7 and C24 are only required for measurement purposes; they are not used in a tuner.
Fig.11 Measurement circuit.
1996 Jun 06
12