AD7010

製造中止

This Product is Obsolete

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製品情報

Data Rates up to 76.8 kbits/s
Single Chip Low Power UHF Transmitter
902 MHz–928 MHz Frequency Band
Low Current Consumption
28 mA at 8 dBm Output

On-Chip VCO and Fractional-N PLL
Power-Down Mode (<1 µA)
2.3 V–3.6 V Supply Voltage
24-Lead TSSOP Package
Programmable Output Power –16 dBm to +12 dBm, 0.3 dB Steps

The AD7010 is a complete low power, CMOS, pi/4 DQPSK modulator with single +5 V power supply. The part is designed to perform the baseband conversion of I and Q transmit waveforms in accordance with the Japanese Digital Cellular Telephone system.

The on-chip pi/4 Differential Quadrature Phase Shift Keying (DQPSK) digital modulator, which includes the Root Raised Cosine filters, generates I and Q data in response to the transmit data stream. The AD7010 also contains ramp control envelope logic to shape the I and Q output waveforms when ramping up or down at the beginning or end of a transmit burst.

Besides providing all the necessary logic to perform pi/4 DQPSK modulation, the part also provides reconstruction filters to smooth the DAC outputs, providing continuous time analog outputs. The AD7010 generates differential analog outputs for both the I and Q signals.

As it is a necessity for all digital mobile systems to use the lowest possible power, the device has power down options. The AD7010 is housed in a space efficient 24-pin SSOP (Shrink Small Outline Package).