GENERAL DESCRIPTION
DATEL's ADS-325A is a low power, 10-bit, 20MHz, CMOS sampling A/D converter. Its small 48 pin plastic LQFP package contains a S/H amplifier, a 3-state output register, linearity calibration circuitry, and all necessary control logic. Only two external reference voltages, an A/D clock and a few digital inputs are required. The A/D clock may be applied with 50% duty cycle.
The excellent dynamic performance includes a spurious free dynamic range of 65dB and a signal-to-noise ratio with distortion of 54dB with a 3MHz input. ADS-325A is capable of operating from a single +5V power supply and typically consumes only 150mW. It can also operate from a +5V analog VS with +3.3V digital VS enabling an interface with 3.3V logic circuitry. The ADS-325A is ideally suited for high quality video/CCD imaging applications.

FEATURES
*10-bit, 20MHz sampling
*±1LSB max. differential nonlinearity
*Internal calibration circuit
*Internal S/H amplifier
*70MHz input bandwidth
*TTL/CMOS compatible in-out logic
*Latched three-state output data
*Single +5V supply
*Low 150mW power dissipation
*Small 48 pin LQFP package
*Low cost

 

ADS-325A - 10-Bit, 20MHz Sampling A/D Converter

DESCRIPTION
The PCM1796 is a monolithic CMOS integrated circuit that includes stereo digital-to-analog converters and support circuitry in a small 28-lead SSOP package. The data converters use TI’s advanced segment DAC architecture to achieve excellent dynamic performance and improved tolerance to clock jitter. The PCM1796 provides balanced current outputs, allowing the user to optimize analog performance externally. The PCM1796 accepts PCM and DSD audio data formats, providing easy interfacing to audio DSP and decoder chips. The PCM1796 also
interfaces with external digital filter devices (DF1704, DF1706, PMD200). Sampling rates up to 200 kHz are supported. A full set of user-programmable functions is accessible through an SPI or I2C serial control port, which supports register write and readback functions. The PCM1796 also supports the time division multiplexed command and audio (TDMCA) data format.

FEATURES
*24-Bit Resolution
*Analog Performance:
- Dynamic Range: 123 dB
- THD+N: 0.0005%
*Differential Current Output: 4 mA p-p
*8× Oversampling Digital Filter:
- Stop-Band Attenuation: –98 dB
- Pass-Band Ripple: ±0.0002 dB
*Sampling Frequency: 10 kHz to 200 kHz
*System Clock: 128, 192, 256, 384, 512, or 768 fS With Autodetect
*Accepts 16-, 20-, and 24-Bit Audio Data
*PCM Data Formats: Standard, I2S, and Left-Justified
*DSD Format Interface Available
*Interface Available for Optional External Digital Filter or DSP
*TDMCA or Serial Port (SPI/I2C)
*User-Programmable Mode Controls:
- Digital Attenuation: 0 dB to –120 dB, 0.5 dB/Step
- Digital De-Emphasis
- Digital Filter Rolloff: Sharp or Slow
- Soft Mute
- Zero Flag for Each Output
*Compatible With PCM1792 (Pins and Mode Controls)
*Dual Supply Operation:
- 5-V Analog, 3.3-V Digital
*5-V Tolerant Digital Inputs
*Small 28-Lead SSOP Package

APPLICATIONS
*A/V Receivers
*SACD Players
*DVD Players
*HDTV Receivers
*Car Audio Systems
*Digital Multitrack Recorders
*Other Applications Requiring 24-Bit Audio

PCM1796DB, PCM1796DBR  

PCM1796 - 24-BIT, 192kHz SAMPLING, ADVANCED SEGMENT, AUDIO STEREO DIGITAL-ANALOG CONVERTER

DESCRIPTION
The Comstron Model PSC-4490 is a Nyquist bandpass filter used in a DAC( digital to analog converter). The purpose of the filter is to normalize the amplitude response of an input o(Sin x)/xo signal spectrum, and to reject unwanted frequencies while maintaining low group delay variation in the passband. The equalizing shape over the passband is |x/sin x|2 where where x = (∮f)/fs and fs=50.0 MSPS (sampling rate).

FEATURES
*INVERSE SINC, SQUARE ROOT NYQUIST (ARBITRARY SHAPING AVAILABLE)
*FLAT GROUP DELAY
*SHARP ATTENUATION
*COMPACT SIZE
*FREQUENCY RANGE; 1 MHZ - 3000 MHZ

 

PSC-4490 - 22.6 MHZ NYQUIST BANDPASS FILTER FOR DIGITAL TO ANALOG CONVERTER

DESCRIPTION
This DC-DC converter module uses 2nd Generation power processing, control and packaging technologies to provide the performance, flexibility and cost effectiveness expected of a mature power component. For example, a plated-cavity core transformer couples widely separated primary and secondary windings, resulting in low in-toout parasitic capacitance and noise.
High frequency ZCS/ZVS switching, advanced power semiconductor packaging and thermal management provide high power density with low temperature gradients. Extensive use of silicon integration results in 1/3 the part count of a 1st Generation converter.

Features
*DC input range: 36 - 75V
*Input surge withstand: 100V for 100ms
*DC output: 24V
*Programmable output: 10 to 110%
*Regulation: ±0.2%
*Efficiency: 88.5%
*Maximum operating temperature: 100°C at full load
*Power density: 100W/cubic inch
*Height above board: 0.43 in. (10,9 mm)
*Parallelable, with N+M fault tolerance
*Low noise ZCS/ZVS architecture

V24A15C250A, V48A15C250A, V300A15C250A, V375A15C250A, V24B15C250A, V48B15C250A, V300B15C250A, V375B15C250A, V24C15C250A, V48C15C250A, V300C15C250A, V375C15C250A, V24A15T250A, V48A15T250A, V300A15T250A, V375A15T250A, V24B15T250A, V48B15T250A, V300B15T250A, V375B15T250A, V24C15T250A, V48C15T250A, V300C15T250A, V375C15T250A, V24A15H250A, V48A15H250A, V300A15H250A, V375A15H250A, V24B15H250A, V48B15H250A, V300B15H250A, V375B15H250A, V24C15H250A, V48C15H250A, V300C15H250A, V375C15H250A, V24A15M250A, V48A15M250A, V300A15M250A, V375A15M250A, V24B15M250A, V48B15M250A, V300B15M250A, V375B15M250A, V24C15M250A, V48C15M250A, V300C15M250A, V375C15M250A
 

V48B24C250A - DC-DC Converter Module

Description
The Bel xRAH-01Kxxx is a part of the low cost non-isolated dc/dc converter Power Module series. The modules use a SMD or SIP package for ease of layout and space savings. The output is closely regulated and the efficiency of 9 Vdc output module is typically 86% at full load.

Features
*Non-Isolated
*Low Profile Package
*High Efficiency
*Remote On/Off
*Fixed Frequency (450kHz)
*UL60950-1 Recognized (UL/cUL)
*Active Low/High

SRAH-01K50x, SRAH-01K90x, SRAH-01KX2x, VRAH-01K50x, VRAH-01K90x, VRAH-01KX2x  

xRAH-01K - NON-ISOLATED DC/DC CONVERTERS