TDA5670-5X Datasheet, PDF (4/22 Pages) Siemens Semiconductor Group – Video Modulator for FM/AM-Audio with PLL-Output

TDA 5670-5X
Pin Definitions and Functions
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
Symbol
FM-Audio
V_REF
OSC-Input 1
OSC-Out 1
OSC-Ground
OSC-Out 2
OSC-Input 2
V_S
N.C.
PLL-Out 1
PLL-Out 2
Video
Video-Cap.
14
Modulation
15
Output 2
16
Ground
17
Output 1
18
AM-Audio
19
FM-Audio OSC
20
FM-Audio OSC
Function
AF-input for FM-modulation
Internal reference voltage (7.5 V)
Symmetrical oscillator input
Symmetrical oscillator output
Oscillator ground
Symmetrical oscillator output
Symmetrical oscillator input
Supply voltage (12 V)
Not connected
Symmetrical unmodulated oscillator output
Symmetrical unmodulated oscillator output
Video input with clamping
Connection for smoothing capacitor for video control
loop
Switch-over for positive and negative modulation
Symmetrical RF-output
Ground
Symmetrical RF-output
Video to audio carrier ratio adjustment and AF-input for
AM-modulation
FM-audio oscillator; symmetrical inputs for tank circuit
FM-audio oscillator; symmetrical inputs for tank circuit
Semiconductor Group
4