Analog Devices Inc. AD916 RF DAC

Analog Devices AD916x 11/16비트 디지털-아날로그 변환기(DAC)는 매우 역동적인 범를, 광대역폭 및 6GSPS 데이터 전송률을 제공하여 가장 까다로운 고속 RF 애플리케이션을 지원합니다. AD916x DAC 코어는 보간기 필터 2개와 함께 쿼드 스위치 아키텍처 특징이 있습니다. AD916x DAC는 이러한 설계로 인해 12GSPS에 이르는 효과적인 DAC 업데이트율을 제공할 수 있습니다.

Baseband Mode
When in baseband mode, AD9161/AD9162/AD9163/AD9164 DACs support DOCSIS 3.1 cable infrastructure compliance. The AD9161/AD9162 DACs use a minimum of two carriers to operate across a full 1.794GHz spectrum. The AD9163/AD9164 DACs use a minimum of one carrier to operate up to a 1GHz (AD9163) or 1.791GHz (AD9164) signal bandwidth. A 2x Interpolator filter (FIR85) allows the AD9161/AD9162/AD9163 DACs to operate at lower data rates and converter clocking. This reduces the overall system power and eases the filtering requirements.

Mix-Mode
When in mix-mode, the AD9161/AD9162/AD9163/AD9164 DACs maintain an exceptional dynamic range and can reconstruct RF carriers in the 2nd and 3rd Nyquist zones up to 7.5GHz. Designers can program the output current from 8mA to 40mA.

Data Interface
The AD9161/AD9162 data interface features up to eight programmable JESD204B SERDES lanes for maximum design flexibility. The device's serial peripheral interface (SPI) configures the AD9161/AD9162/AD9163/AD9164 DACs and monitors the status of all registers.

특징

DAC update rate to 12GSPS (minimum)
Direct RF synthesis at 6GSPS (minimum)
- DC to 2.5GHz in baseband 1 x bypass mode (AD9161/AD9162)
- DC to 2.5GHz in baseband mode (AD9164)
- DC to 6GHz in 2x nonreturn-to-zero (NRZ) mode (AD9161/AD9162/AD9163/AD9164)
- DC to 3GHz in nonreturn-to-zero (NRZ) mode (AD9163)
- 1.5 to 7.5GHz in mix-mode

Bypassable interpolation (1x or bypass mode) (AD9161/AD9162/AD9164)
2x, 3x, 4x,, 6x, 8x, 12x, 16x, 24x
Selectable interpolation (AD9163) 6x, 8x, 12x, 16x, 24x
Excellent dynamic performance

애플리케이션

Broadband communications systems
- DOCSIS 3.1 cable modem termination system (CMTS)/video on demand (VOD)/edge quadrature amplitude modulation (EQAM)
Wireless Communications InfrastructureWCDMA, LTE, LTE-A, Point-to-point