AD62551A

AD62551A

USB controller with external Amplifier and Recording function

operation

z 12 MHz Crystal Input z 32-pin LQFP(Pb free)

Features z Compliant with USB Specification v1.1, and USB 2.0 full speed

z Support I2S input and I2S output interface of master mode Sampling frequencies(Fs)：48kHz z Support recording function

z Supports Win Me//2000/XP and MacOS z True plug-and-play application, no driver is required for basic USB speaker application

z Support volume/mute control with external button z Built-in 5V to 3.3V regulator for internal device

Description AD62551A is a USB audio controller with I2S interface and supports recording function. The device also has an I2S input port and I2S output port. The I2S output port allows other high performance audio device (i.e. AD8356A/AD8256A) to be controlled by AD62551A.

Functional Block Diagram

Elite Semiconductor Memory Technology Inc.

Publication Date: Apr. 2007 Revision: 1.2 1/10

ESMT

AD62551A

Pin Assignment

Pin Description Pin Name Type Description Characteristics Schmitt trigger TTL input buffer Schmitt trigger TTL input buffer Publication Date: Apr. 2007 Revision: 1.2 2/10

1 MSDA I/O I2C’s SDA of Master mode 2 MSCL O I2C’s SCL of master mode 3 PDO O Power-down output (Note1) 4 SDATAO O Serial audio output (Note1) 5 LRCIN O L/R clock output(Fs) (Note1) 6 BCLK O BCLK output(xFs) (Note1) 7 SDATAI I Serial audio data input 8 MCLK O Master clock(256xFs) 9 GND P Ground 10 NC NC No connection 11 NC NC No connection 12 VDD P 5V supply voltage Elite Semiconductor Memory Technology Inc.

ESMT

13 VDD P 5V supply voltage No connection Low is USB mode, high is I2S modeMode selection bit 14 NC NC No connection 15 NC NC 17 19 USB/I2S AD62551A

Schmitt trigger TTL input buffer Schmitt trigger TTL input buffer With internal pull-up resistor With internal pull-up resistor Schmitt trigger TTL input buffer Open-Drain output Schmitt trigger TTL input buffer 16 GND P Ground I I 18 NC NC No connection SEL 20 XO O Crystal output 21 XI I Crystal input 22 GND P Ground 23 24 25 26 28 29 30 31 32 REGO VDD USBDM USBDP VOLDN VOLUP MUTE ERROR RESET O P I/O I/O I I I O I 3.3V regulator output 5V supply voltage USB data D- USB data D+ Volume down, low active Volume up, low active Power-down and mute of Class D Error output Reset signal 27 GND P Ground Note1: Must be strapped resistor 1MΩ to 3.3V(REGO) or GND. BCLK, LRCIN and PDOmust be strapped to GND. SDATAO is strapped to GND when AD62551A is button mode, otherwise strapped to 3.3V when AD62551A is I2C slave mode.

Absolute Maximum Ratings Symbol VDD Vi Tstg Ta

Parameter

Supply for regulator input

Input Voltage Storage Temperature

Ambient Operating Temperature

Min 0 -0.3 -65 0

Max 5.5 3.6 150 70

Units V V oC oC

Recommended Operating Conditions Symbol VDD

Parameter

Supply for regulator input

Typ 4.5~5.5

UnitsV

o

Ta Ambient Operating Temperature0~70 C

Elite Semiconductor Memory Technology Inc.

Publication Date: Apr. 2007 Revision: 1.2 3/10