Masood_786
Junior Member level 2
Hi All
Is there any one who experimented with TA2003 chip. I was first checking the mixer output of the chip but unable to find any output. Later i would connect mixer output with IF filter to Pin 8. I have done the following
1. Connected NE612 with 10.245Mhz crystal to get output (oscillator for 10.245 Mhz) from Pin 5. pin1 was gounded via 10k resistor and pin5 is producing the desired frequency.
2. Connected TA2003 for FM mode. Pin 14 (vcc) pin2 (gnd) pin 9 (gnd)
Pin 6 (vcc) and connected output from NE602 to FM oscillator input of
TA2003 at pin 13 and Left Pin 1 (open) and connected pin 3 (mixer output) to oscilloscope but did't get ans signal (frequency). Later i also connected Pin 1 of TA2003 to gnd via wire and later via 10k resistor but no luck.
When there in no FM RF input at Pin 1 of TA2003 then mixer should produce 0+10.245Mhz and 0-10.245Mhz and i should get fm local oscillator signal at 10.245 Mhz. This way i wanted to check that FM mixer module of IC is working fine but no luck.
Can anybody help me on this.
Masood
Is there any one who experimented with TA2003 chip. I was first checking the mixer output of the chip but unable to find any output. Later i would connect mixer output with IF filter to Pin 8. I have done the following
1. Connected NE612 with 10.245Mhz crystal to get output (oscillator for 10.245 Mhz) from Pin 5. pin1 was gounded via 10k resistor and pin5 is producing the desired frequency.
2. Connected TA2003 for FM mode. Pin 14 (vcc) pin2 (gnd) pin 9 (gnd)
Pin 6 (vcc) and connected output from NE602 to FM oscillator input of
TA2003 at pin 13 and Left Pin 1 (open) and connected pin 3 (mixer output) to oscilloscope but did't get ans signal (frequency). Later i also connected Pin 1 of TA2003 to gnd via wire and later via 10k resistor but no luck.
When there in no FM RF input at Pin 1 of TA2003 then mixer should produce 0+10.245Mhz and 0-10.245Mhz and i should get fm local oscillator signal at 10.245 Mhz. This way i wanted to check that FM mixer module of IC is working fine but no luck.
Can anybody help me on this.
Masood