AK8456

[AK8456] AK8456 3 channel input 16bit 30MSPS Video ADC with LED driver 1. General Description AK8456 is an AFE for three channels contact image sensor (CIS). AK8456 has offset adjusting DAC, digital programmable gain amplifier (PGA) and LED drivers. AK8456 is suitable for multi-function printer and image scanner. 2. Feature  Input Block Channel number 3 channel (1 channel mode is available) Range 1.3Vpp (min.) Gain 0dB/6dB  ADC Maximum conversion ratio 30MSPS 10MSPS/ch @ 3-channel mode 30MSPS/ch @ 1-channel mode Resolution 16bit (Straight binary code/Gray code)  Black correction DAC Range Resolution 369mV (Equivalent input voltage) ＜±250mV(min.)＞ 6bit  Digital PGA Range 0dB~18dB Resolution 8bit  Output Format 8bit × 2  LED Current 67.2mA/ch (typ.) @ Maximum setting  CPU I/F Adjustable by 12.5% resolution channel independently 3-wire serial interface  Supply Voltage  Power Consumption AFE: 3.3V0.3V, LED driver: 4.5V~5.7V 190 mW (typ.)：Except LED drive current.  Operating Temperature 0C~70C  Package 36pin QFN (Exposed Die Pad), 0.4mm pitch, 5mm5mm 014002433-E-00 -1- 2014/06 3. Table of Contents [AK8456] 1. General Description ........................................................................................................................1 2. Feature............................................................................................................................................1 3. Table of Contents............