AD1819B

a AC’97 FEATURES Fully Compliant AC’97 Analog I/O Component 48-Terminal LQFP Package Multibit ⌺⌬ Converter Architecture for Improved S/N Ratio >90 dB 16-Bit Stereo Full-Duplex Codec Four Analog Line-Level Stereo Inputs for Connection from LINE, CD, VIDEO, and AUX Two Analog Line-Level Mono Inputs for Speakerphone and PC BEEP Mono MIC Input Switchable from Two External Sources High Quality CD Input with Ground Sense Stereo Line Level Output Mono Output for Speakerphone Power Management Support AC’97 SoundPort® Codec AD1819B ENHANCED FEATURES Support for Multiple Codec Communications DSP 16-Bit Serial Port Format Variable 7 kHz to 48 kHz Sampling Rate with 1 Hz Resolution Supports Modem Sample Rates and Filtering Phat™ Stereo 3D Stereo Enhancement VHDL and Verilog Models of Serial Port Available FUNCTIONAL BLOCK DIAGRAM CS0 CS1 CHAIN_IN CHAIN_CLK AD1819B MIC1 MIC2 LINE_IN AUX CD VIDEO PHONE_IN SYNC AC LINK 0dB/ 20dB MASTER/SLAVE SYNCHRONIZER PGA SELECTOR 16-BIT ⌺⌬ A/D CONVERTER PGA 16-BIT ⌺⌬ A/D CONVERTER RESET ⌺ G A M G A M G A M G A M G A M G A M G A M SAMPLE RATE GENERATORS BIT_CLK SDATA_OUT LINE_OUT_L MONO_OUT LINE_OUT_R MV MV MV ⌺ ⌺ PHAT STEREO ⌺ ⌺ ⌺ ⌺ ⌺ 16-BIT ⌺⌬ D/A CONVERTER SDATA_IN ⌺ ⌺ A M ⌺ PHAT STEREO ⌺ ⌺ ⌺ ⌺ ⌺ G A M 16-BIT ⌺⌬ D/A CONVERTER PC_BEEP G = GAIN A = ATTENUATE M = MUTE MV = MASTER VOLUME OSCILLATORS XTALO XTALI SoundPort is a registered trademark of Analog Devices, Inc. Phat is a trademark of Analog Devices, ...