Features: ·Advanced Multi-bit Delta-Sigma Architecture·Real-time Feedback of Power Supply Conditions (AC and DC)·Filterless Digital Output Resulting in Very Low Signal Delay·135 mW Power Consumption·Supports Logic Levels Between 3.3 V and 5.0 V·Differential Analog Architecture·Modulator Overflow D...
CS4461: Features: ·Advanced Multi-bit Delta-Sigma Architecture·Real-time Feedback of Power Supply Conditions (AC and DC)·Filterless Digital Output Resulting in Very Low Signal Delay·135 mW Power Consumption...
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Parameter | Symbol | Min | Max | Units |
DC Power Supplies: Analog Digital |
VA VDP |
-0.3 -0.3 |
+6.0 +6.0 |
V V |
Input Current (Note 2) | Iin | - | ±10 | mA |
Analog Input Voltage (Note 3) | VIN | GND - 0.7 | VA + 0.7 | V |
Digital Input Voltage (Note 3) | VIND | -0.7 | VDP + 0.7 | V |
Ambient Operating Temperature (Power Applied) | TA | -50 | +95 | °C |
Storage Temperature | Tstg | -65 | +150 | °C |
The CS4461 is a complete analog-to-digital (A/D) converter for Class-D PSR (power-supply rejection) feedback. It performs sampling and A/D conversion, generating digital data for input to a Class-D modulator.
The CS4461's advanced Delta-Sigma architecture allows differential analog inputs that provide excellent noise rejection and multibit conversion at up to 7.5 MHz.
CS4461 A/D converter provides real-time feedback of power-supply conditions to a Class-D modulator via a direct interface, resulting in very low signal delay. Improved PSR feedback allows the systems designer to use lower cost power supplies, resulting in a lower bill-of-materials (BOM) cost. Systems developers can further lower BOM costs by developing single-ended (half-bridge) solutions as opposed to differential (full-bridge) solutions.
The CS4461 A/D converter and the CS44600/800 Class-D digital amplifiers provide a simple, small and cost-effective solution for DVD receivers, home theater recorders and entry-level audio/video receivers and home-theater-in-a-box systems.