(China (Mainland))
Product Summary
The TDA7021T/V4 is an integrated radio receiver circuit. It is for portable radios, stereo as well as mono, where a minimum of periphery is important in terms of small dimensions and low cost. The TDA7021T/V4 is fully compatible for applications using the low-voltage micro tuning system (MTS). The IC TDA7021T/V4 has a frequency locked loop (FLL) system with an intermediate frequency of 76 kHz. The selectivity is obtained by active RC filters. The only function to be tuned is the resonant frequency of the oscillator. Interstation noise as well as noise from receiving weak signals is reduced by a correlation mute system.
Parametrics
TDA7021T/V4 absolute maximum ratings: (1)Supply voltage (pin 4): 1.8 to 6.0 V; (2)Supply current l4: 6.3 mA; (3)RF input frequency frf: 1.5 to 110 MHz; (4)AF output voltage Vo: 90 mV.
Features
TDA7021T/V4 features: (1)RF input stage; (2)Mixer; (3)Local oscillator; (4)IF amplifier/limiter; (5)Frequency detector; (6)Mute circuit; (7)MTS compatible; (8)Loop amplifier; (9)Internal reference circuit; (10)LF amplifier for; (11)mono earphone amplifier or; (12)MUX filter; (13)Field-strength dependent channel separation control facility.
Diagrams
| Image | Part No | Mfg | Description |  |
Pricing (USD) |
Quantity | ||||
|---|---|---|---|---|---|---|---|---|---|---|
 |
 TDA7021T/V4,112 |
NXP Semiconductors |
RF Wireless Misc FM CIRCUIT FOR MTS |
Data Sheet |
Negotiable |
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TDA7021T/V4,118 |
NXP Semiconductors |
RF Wireless Misc FM CIRCUIT FOR MTS |
Data Sheet |
Negotiable |
|
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