tda5745ts NXP Semiconductors, tda5745ts Datasheet - Page 13

• Manufacturer Part Number: tda5745ts
• Description: Low Power Mixers/oscillators For Hyperband Tuners
• Manufacturer: NXP Semiconductors

Philips Semiconductors
1998 Mar 09
handbook, full pagewidth
Low power mixers/oscillators for
hyperband tuners
The pin numbers in parenthesis represent the TDA5745.
C27
VHFH
VHFL
V ripple
UHF
P9
BC847B
for test purpose only
10 F
(16 V)
TR1
LED-3R
LED-3G
LED-3Y
J5
D5
D6
D7
1.2 k
50
R18
R22
C28
330
330
330
R10
R11
R8
(16 V)
V CC
10 F
V CC
J1
V CC
J2
UHF2
UHF1
L value/C value
VHF
6
4
TOKO 7 km
J3
L3
J4
7
8
P1
P2
P3
3
1
2
1 nF
1 nF
1 nF
C1
C3
C6
15 pF
15 pF
C13
C11
UHFIN1
UHFIN2
RFGND
Fig.11 Measurement circuit.
VHFIN
IFFIL2
IFFIL1
n.c.
n.c.
n.c.
n.c.
n.c.
BS
1 (24)
3 (22)
4 (21)
9 (16)
10 (15)
11 (14)
12 (13)
2 (23)
5 (20)
6 (19)
7 (18)
8 (17)
(TDA5745)
TDA5744
13
(10) 15
(11) 14
(12) 13
(1) 24
(2) 23
(3) 22
(4) 21
(5) 20
(6) 19
(7) 18
(8) 17
(9) 16
VHFOSCIB2
VHFOSCOC2
VHFOSCOC1
VHFOSCIB1
UHFOSCOC1
UHFOSCIB1
GND
IFOUT2
IFOUT1
V CC
UHFOSCIB2
UHFOSCOC2
1 nF
1 nF
C19
C20
2.2 pF
150 pF
2.2 pF
2.2 pF
10 nF
1 pF
1 pF
1 pF
1 pF
C22
C12
C14
C16
C17
C2
C4
C7
C8
80 nH
80 nH
L9
L8
22 k
BB149
R21
D1
100
C9
pF
D4
BB149
C18
10 pF
C21
18 pF
BB152
TDA5744; TDA5745
R2
22
k
D2
AGND
1
R6
22 k
for test purpose only
47 pF
33 V
L4
80 nH
L2
30 nH
C15
4.7 nF
4.7 nF
C10
1
2
3
L7
C5
2
V CC
V CC
Preliminary specification
3
7
8
voltage
tuning
L5
16 nH
P6
R9
4.7 k
5 V
D3
BA792
4
4
6
P8
P4
R4 1.5 k
R1 1.5 k
R5 2.7 k
R3 22 k
1 H
L1
L6
30 nH
22 k
R7
OUT
IF
10 nF
C24
MGM467
VHFH
VHFL
R14
22 k
R16
22 k