ADF7012BRUZ Data Converter IC RF Transmitter MultiCH ISM Band FSK /GFSK/OOK/GOOK/ASK
dac integrated circuit
,da converter chip
ADF7012BRUZ Data Converter IC RF Transmitter MultiCH ISM Band FSK /GFSK/OOK/GOOK/ASK
FEATURES
- Single-chip, low power UHF transmitter
- 75 MHz to 1 GHz frequency operation Multichannel operation using fractional-N PLL 2.3 V to 3.6 V operation
- On-board regulator
- Programmable output power
- −16 dBm to +14 dBm, 0.4 dB steps Data rates: dc to 179.2 kbps
- Low current consumption
- 868 MHz, 10 dBm, 21 mA 433 MHz, 10 dBm, 17 mA 315 MHz, 0 dBm, 10 mA
- Programmable low battery voltage indicator 24-lead TSSOP
APPLICATIONS
- Low cost wireless data transfer Security systems
- RF remote controls
- Wireless metering
- Secure keyless entry
- Multichannel ISM Band FSK/GFSK/OOK/GOOK/ASK Transmitter
GENERAL DESCRIPTION
The ADF7012 is a low power FSK/GFSK/OOK/GOOK/ASK UHF transmitter designed for short-range devices (SRDs). The output power, output channels, deviation frequency, and mod- ulation type are programmable by using four, 32-bit registers.
The fractional-N PLL and VCO with external inductor enable the user to select any frequency in the 75 MHz to 1 GHz band. The fast lock times of the fractional-N PLL make the ADF7012 suitable in fast frequency hopping systems. The fine frequency deviations available and PLL phase noise performance facilitates narrow-band operation.
There are five selectable modulation schemes: binary frequency shift keying (FSK), Gaussian frequency shift keying (GFSK), binary on-off keying (OOK), Gaussian on-off keying (GOOK), and amplitude shift keying (ASK). In the compensation register, the output can be moved in <1 ppm steps so that indirect com- pensation for frequency error in the crystal reference can be made.
A simple 3-wire interface controls the registers. In power-down, the part has a typical quiescent current of <0.1 μA.
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