14 bit DAC,Quadrature Digital Upconverter(QDUC)
HFC data, telephony, and video modems
Wireless base station transmissions
Broadband communications transmissions
Internet telephony
The CBM99D57 functions as a universal I/Q modulator and agile upconverter for communications systems where cost, size, power consumption, and dynamic performance are critical. The CBM99D57 integrates a high speed, direct digital synthesizer (DDS), a high performance, high speed, 14-bit digital-to-analog converter (DAC), clock multiplier circuitry, digital filters, and other DSP functions onto a single chip. It provides baseband upconversion for data transmission in a wired or wireless communications system.
1 GSPS internal clock speed (up to 400 MHz analog output)
Integrated 1 GSPS 14-bit DAC
250 MSPS input data rate
Phase noise ≤ −125 dBc/Hz (400 MHz carrier at 1 kHz offset)
Excellent dynamic performance >80 dB narrow-band SFDR
8 programmable profiles for shift keying
Sin(x)/(x) correction (inverse sinc filter)
Reference clock multiplier
Internal oscillator for a single crystal operation
Software and hardware controlled power-down
Integrated RAM
Phase modulation capability
Multichip synchronization
Easy interface to Blackfin SPORT
Interpolation factors from 4× to 252×
Interpolation DAC mode
Gain control DAC
Internal divider allows references up to 2 GHz
1.8 V and 3.3 V power supplies
EP_TQFP-100
Model | Package | Pins | Temp Range | Packing Qty | RoHS | Sample |
---|---|---|---|---|---|---|
CBM99D57BQ | EP_TQFP-100 | 100 | -45℃ to +85℃ | Tray, 90 | RoHS | Online Apply |