Pin Details of IC A-Z, Basic Electronics and Antenna: September 2009

Pin No.	Function	Voltage
1.	Audio frequency output	6.5
2.	Positive(+Ve supply voltage)	12.8
3.	Bootstrap	12.6
4.	Not connected	-
5.	Not connected	-
6.	(Feed back ) invert input	2.6
7.	SVR	2.5
8.	Non invert input (Audio frequency input)5.5MHz	2.6
9.	Ground(-Ve supply voltage)	0
10.	Ground(-Ve supply voltage)	0
11.	Ground(-Ve supply voltage)	0
12.	Ground(-Ve supply voltage)	0
13.	Ground(-Ve supply voltage)	0
14.	Ground(-Ve supply voltage)	0
15.	Ground(-Ve supply voltage)	0
16.	Ground(-Ve supply voltage)	0

Substitute : TDA1670(A), TDA1675

Functions :

Pin No.	Functions	Voltage
1.	It is one output of the power amplifier.It drive the yoke by a negative ramp current (50Hz.)	13.7
2.	Supply voltage for power output stage	21.4
3.	Vertical oscillator (50Hz.)	3.4
4.	Vertical oscillator (50Hz.)	0.5
5.	Input for sync pulses(+Ve)(50Hz.)	0.4
6.	Output of the switch drive by the internal clock pulse generated by the threshold circuits	0.5
7.	The current between Pin No.7 and ground decides the height of the ramp (sawtooth Pulse)	6.8
8.	Ground (-Ve supply voltage)	0
9.	Input of the buffer (output)stage	3.9
10.	Output of the buffer stage and is internally connected to the inverting input of the power amplifier	4.9
11.	Non inverting input	4.4
12.	Inverting input of the amplifier	4.3
13.	Output where the blanking pulse is available	1.2
14.	Main supply voltage	21.4
15.	Output the flyback generator	1.4

Pin Details of IC A-Z, Basic Electronics and Antenna