AD9267
FEATURES
SNR: 83 d B (85 d BFS) to 10 MHz input SFDR:
- 88 d Bc to 10 MHz input Noise figure: 15 d B Input impedance: 1 kΩ Power: 416 m W 10 MHz real or 20 MHz plex bandwidth 1.8 V analog supply operation On-chip PLL clock multiplier On-chip voltage reference Twos plement data format 640 MSPS, 4-bit LVDS data output Serial control interface (SPI)
FUNCTIONAL BLOCK DIAGRAM
AVDD PDWNB PDWNA DRVDD OR±A VIN+A VIN- A
LVDS DRIVERS
Σ -Δ MODULATOR
D3±A D0±A PLL_LOCKED PLLMULT4 PLLMULT3 PLLMULT2 CLK+ CLK- DCO±
VREF CFILT VIN- B VIN+B Σ -Δ MODULATOR
PHASELOCKED LOOP
LVDS DRIVERS
D3±B D0±B OR±B
07773-001
APPLICATIONS
Baseband quadrature receivers: CDMA2000, W-CDMA, multicarrier GSM/EDGE, 802.16x, and LTE Quadrature sampling instrumentation
SERIAL INTERFACE
AGND
SDIO/ PLLMULT1
SCLK/ PLLMULT0
DGND
GENERAL DESCRIPTION
The AD9267 is a dual continuous time (CT) sigma-delta (Σ-Δ) modulator with
- 88 d Bc of dynamic range over 10 MHz real or 20 MHz plex bandwidth. The bination of high...
