M62429FP

M62429P/FP Serial Data Control Dual Electronic Volume Description The M62429 is a dual channel electronic volume controlled with 2-wire serial data. The built-in reference circuit can compose of an electronic volume with less external parts. Features Built-in reference circuit Control with serial data Volume 0 to –83 dB (1 dB/step), –∞ (Independent control is allowed in each channel) Low noise and low distortion VNO = 5 µVrms (ATT = –∞, JIS-A) THD = 0.01 % Typ. (V0 = 0.5 Vrms, DIN-AUDIO) Recommended Operating Conditions Supply voltage range: VCC = 4.5 to 5.5 V Rated supply voltage: VCC = 5 V System Block Diagram M62429/FP REJ03F0209-0300 Rev.3.00 Jun 15, 2007 2ch IN 1ch IN VOLUME VOLUME LOGIC CONTROL 2ch OUT 1ch OUT DATA CLOCK REJ03F0209-0300 Rev.3.00 Jun 15, 2007 Page 1 of 8 M62429P/FP Pin Arrangement VIN1 VOUT1 GND DATA M62429P/FP 1 8 VIN2 2 7 VOUT2 3 6 VCC 4 5 CLOCK (Top view) Outline: PRDP0008AA-A (8P4) [P] PRSP0008DE-C [FP] (recommend) PRSP0008DA-A (8P2S-A) [FP] (not recommend for new design) Pin Description Pin No. 1 2 3 4 5 6 7 8 Symbol VIN1 VOUT1 GND DATA CLOCK VCC VOUT2 VIN2 IC Internal Block Diagram Function 1-ch input pin 1-ch output pin Ground pin Control data input pin. Inputs data in synchronization with clock. Clock input pin for transferring serial data. Power supply pin. Stabilize the pin with decoupling capacitor. 2-ch output pin 2-ch input pin VIN 2 8 VR 2 VR 1 1 VIN 1 VOUT2 7 + – VOL AMP 2 VOL AMP 1 – + + – REF AMP 2 VOUT1 VC...