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參數(shù)資料
| 型號： | TDA5745TS |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 衰減器 |
| 英文描述： | DIODE: SCHOTTKY, 60V, 1A, PACKAGE SMA |
| 中文描述： | RF/MICROWAVE DOUBLE BALANCED MIXER |
| 文件頁數(shù)： | 13/20頁 |
| 文件大?。?/td> | 123K |
| 代理商： | TDA5745TS |
1998 Mar 09
13
Philips Semiconductors
Preliminary specification
Low power mixers/oscillators for
hyperband tuners
TDA5744; TDA5745
Fig.11 Measurement circuit.
The pin numbers in parenthesis represent the TDA5745.
handbook, full pagewidth
MGM467
1 (24)
2 (23)
3 (22)
4 (21)
UHFIN1
UHFIN2
VHFIN
RFGND
5 (20)
15 pF
15 pF
1
2
3
6
4
7
8
6 (19)
7 (18)
8 (17)
IFFIL1
IFFIL2
n.c.
n.c.
9 (16)
10 (15)
11 (14)
12 (13)
BS
n.c.
n.c.
n.c.
(12) 13
(11) 14
IFOUT1
(10) 15
(9) 16
(8) 17
(7) 18
(6) 19
VCC
GND
IFOUT2
UHFOSCIB1
UHFOSCOC1
UHFOSCOC2
(5) 20
(4) 21
(3) 22
(2) 23
(1) 24
UHFOSCIB2
VHFOSCIB1
VHFOSCOC2
VHFOSCOC1
TDA5744
(TDA5745)
C1
P1
P2
P3
1 nF
C3
1 nF
C6
1 nF
UHF1
UHF2
VHF
U
C13
C11
1.2 k
330
μ
F
10
μ
F
10
VHFH
LED-3Y
330
VHFL
LED-3R
330
UHF
R10
R8
R11
LED-3G
D6
D5
D7
R18
50
R22
C27
C28
for test purpose only
VCC
+
VCC
VCC
TR1
BC847B
VrP9
J5
J1
V
J2
V
J3
P
J4
VHFOSCIB2
C17
1 pF
1 pF
1 pF
1 pF
C8
2.2 pF
C16
C7
2.2 pF
C14
C4
R21
2.2 pF
C12
C2
D1
BB149
150 pF
C9
pF
D3
BA792
D2
BB152
R9
L2
C5
L4
L5
16 nH
C18
4.7 nF
4.7 nF
C10
47 pF
C15
R6
22 k
R2
22
k
L6
1
μ
H
L1
R4 1.5 k
R5 2.7 k
R3 22 k
22 k
R1 1.5 k
22 k
R7
D4
BB149
VHFH
VHFL
+
33 V
AGND
tP6
+
5 V
1
2
3
4
C22
10 nF
C24
10 nF
L8
80 nH
L9
80 nH
C20
1 nF
C19
1 nF
C21
1
2
3
6
L7
4
7
8
IF
P4
for test purpose only
L3
TOKO 7 km
L value/C value
R16
R14
+
VCC
+
VCC
P8
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