參數(shù)資料
型號(hào): TDA8722M-T
廠商: NXP SEMICONDUCTORS
元件分類: 消費(fèi)家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PDSO20
文件頁數(shù): 7/28頁
文件大?。?/td> 155K
代理商: TDA8722M-T
1998 Jun 23
15
Philips Semiconductors
Product specication
I2C-bus programmable modulator for
negative video modulation and FM sound
TDA8722
APPLICATION INFORMATION
Fig.7 Reference measuring set-up.
(1) K1: switches the pre-emphasis filter on or off.
(2) L5: air coil; 1.5 turns; diameter of 2 mm.
(3) L3: to adjust the application to the right sound carrier frequency (5.5 MHz for PAL G).
(4) K2: Switches the FM sound oscillator on or off.
handbook, full pagewidth
220 pF
220 k
15 k
220
C1
C30
C31
10 nF
2.2
F
C21
2.2
F
AUDIO
R4
12 k
R18
82
R19
470
R17
120 k
R20
470
RF
75
1 k
R14
R2
22 k
75
12 k
R5
22 k
R6
12 k
R7
22 k
R9
C3
C5
C6
C8
56 pF
R1
R3
L3
15
H
K2
BB215
D5
33 pF
150 nF
L5
K1
10 nF
C7
T8
BC547B
R8
10 nF
C11
Q9
C9
4 MHz
27 pF
33 V
5 V
GND
PORT
SCL
SDA
C20
100 nF
20
18
19
17
16
15
14
13
12
11
12
3
4
5
6
7
8
9
10
(3)
(1)
(2)
(4)
VIDEO
100 nF
C19
R15
15 pF
C17
100 pF
C16
100 pF
C15
TDA8722
MBE403
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