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AK7846 Datasheet(PDF) 4 Page - Asahi Kasei Microsystems |
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AK7846 Datasheet(HTML) 4 Page - Asahi Kasei Microsystems |
4 / 16 page AKEMDAKEMD CONFIDENTIAL [AK7846] Rev.04.9 – 4 – 2008/03 Pin / FUNCTION No. Pin Name I/O Function A1 NC - No Connection pin. Connect to ground. A2 VCOIL - Inductor pin for Boost DCDC. A3 PG2 I Pre Gain setting pin2 (available when I2CEN=”L”) A4 ERRO Phase compensation capacitor connection pin for Boost DCDC. Connect a 0.1 µF capacitor between VC pin and ground. A5 VCRP O Right channel Class D amp plus output (+) A6 NC No Connection pin. Connect to ground. B1 - - <Index> B2 VSS3 - Power Booster ground pin:VSS3=0V B3 VSS4 Internal analog circuit ground pin:VSS4=0V B4 VSS2 I Right channel Class D amp ground pin:VSS2=0V B5 VCRN O Right channel Class D amp minus output (-) B6 VDD2 Right channel Class D amp power supply:VDD2=13V(typ.) C1 PG0 I Pre Gain setting pin0 C2 PG1 I Pre Gain setting pin1 C3 - - - C4 - - - C5 NC No Connection pin. Connect to ground. C6 VFB Boosted voltege feedback pin. D1 DVDDI Digital interface power:DVDDI=1.65V~4.5V D2 FC1 I SCF cutoff frequency setting pin1 D3 - - - D4 - - - D5 NC No Connection pin. Connect to ground. D6 NC No Connection pin. Connect to ground. E1 PDN I Power down contorol:schmitt trigger input “High”:poewer up、”Low”:power down E2 FC0 I SCF cutoff frequency setting pin2 E3 VBAT - Battery voltage input:VBAT=2.7V~4.5V E4 VSS1 - Left channel Class D amp ground pin:VSS1=0V E5 VCLN O Left channel Class D amp minus output (-) E6 VDD1 Left channel Class D amp power supply:VDD1=13V(typ.) F1 NC No Connection pin. Connect to ground. F2 VC Voltage reference output. Connect a 0.01 µF capacitor between VC pin and ground. F3 INR I Right channel analog signal input F4 INL I Left channel analog signal input F5 VCLP O Left channel Class D amp plus output (+) F6 NC No Connection pin. Connect to ground. Note 1. Digital input pins (PDN, PG2, PG1, PG0, FC1, FC0) must not be open. Unused Pins Unused pins should be configured as below. Category Pin Name Configuration NoConnection NC VSS |
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