ESMT AD8258A Preliminary Stereo/Mono Digital Audio Amplifier with Headphone Driver and SubWoofer Line-Out Features 2 z 16/18/20/24-bit input with I S, Left-alignment and Right-alignment data format z PSNR & DR(A-weighting) Loudspeaker: 92dB (PSNR), 89dB (DR) @24V Headphone: 86dB (PSNR), 86dB (DR) z Multiple sampling frequencies (Fs) 32kHz / 44.1kHz / 48kHz and 64kHz / 88.2kHz / 96kHz 128kHz/176.4kHz/192kHz z System clock = 64x, 128x, 192x, 256x, 384x, 512x, 576x, 768x, 1024x Fs 64x~1024x Fs for 32kHz / 44.1kHz / 48kHz 64x~512x Fs for 64kHz / 88.2kHz / 96kHz 64x~256x Fs for 128kHz/176.4kHz/192kHz z Supply voltage 12V~24V for loudspeaker driver 3.0~3.3V for others z Loudspeaker output power for 24V 2×28W into 8Ω@1% THD+N for stereo 2×35W into 8Ω@10% THD+N for stereo 1x55W into 4Ω@1% THD+N for mono 1x70W into 4Ω@10% THD+N for mono z Headphone power 40mW into 32Ω@1kHz and 1% THD+N 80mW into 16Ω@1kHz and 1% THD+N z Sound processing including： Bass (+18dB~-12dB, 3dB frequency is 250Hz), Treble (+18dB~-12dB, 3dB frequency is 7kHz), 5 bands parametric EQ, Volume control (+24dB~-103dB, 1dB/step) and Dynamic range control z Anti-pop design z Over-temperature protection z Under-voltage shutdown z Short-circuit protection z I2C control interface z Subwoofer line-out support Applications z CD and DVD z TV audio z Car audio z Boom-box z MP3 docking systems z Portable / Handheld z Powered speaker z Wireless audio z USB speaker Description This is a stereo/mono fully digital audio amplifier with output power which can drive 8Ω/4Ωload with up to 24 V voltage supply. Using I2C digital control interface, AD8258A provides sound processing includes Volume, Bass, Treble, EQ, Mixing and Dynamic Range Control (DRC). Protection circuits are provided to protect AD8258A damage while connection error. It is possible to compose of 2.1 channels with two pieces of AD8258A and 5.1 channels with four pieces. ORDERING INFORMATION Product Number Package Comments AD8258A 10x10 64L E-LQFP Pb-free Elite Semiconductor Memory Technology Inc. Publication Date: Sep. 2007 Revision: 0.1 1/37 ESMT Preliminary AD8258A Pin Assignment Pin Description PIN NAME 1 N.C. 2 N.C. 3 N.C. 4 N.C. 5 PLL_Byp I 6 MCLK I Master clock input Schmitt trigger TTL input buffer 7 CLK_OUT O Clock output from PLL TTL output buffer 8 DGND P Digital Ground 9 TV I 1: hardware control, 0:I2C control 10 DVDD P Digital Power 11 DEF I Default volume setting Schmitt trigger TTL input buffer 12 FSEL I 0: 48kHz, 1:96kHz Schmitt trigger TTL input buffer TYPE DESCRIPTION CHARACTERISTICS Schmitt trigger TTL input buffer Elite Semiconductor Memory Technology Inc. Schmitt trigger TTL input buffer Publication Date: Sep. 2007 Revision: 0.1 2/37 ESMT 13 FS192 14 N.C. 15 N.C. 16 N.C. 17 N.C. 18 N.C. 19 Preliminary AD8258A I 192k sampling rate selection Schmitt trigger TTL input buffer SDATA0 I Serial audio data input 0 Schmitt trigger TTL input buffer 20 SDATA1 I Serial audio data input 1 Schmitt trigger TTL input buffer 21 MONO I MONO mode enable: high active Schmitt trigger TTL input buffer 22 LRCIN I Left/Right clock input (Fs) Schmitt trigger TTL input buffer 23 BCLK I Bit clock input (64Fs) Schmitt trigger TTL input buffer 24 PD I Power down, low active Schmitt trigger TTL input buffer 25 ERROR O Error status Open-drain output 26 RESET I Reset, low active Schmitt trigger TTL input buffer 27 SA0 I I2C select address 0 Schmitt trigger TTL input buffer 28 SA1 I I2C select address 1 Schmitt trigger TTL input buffer 29 SUBA O Subwoofer output + / half-bridge output TTL output buffer 30 SUBB O Subwoofer output - TTL output buffer 31 N.C. 32 N.C. 33 N.C. 34 N.C. 35 SCL I I2C serial clock input Schmitt trigger TTL input buffer 36 SDA I/O I2C bi-directional serial data Schmitt trigger TTL input buffer 37 DGND P Digital Ground 38 DVDD P Digital Power 39 PVDDR P Headphone Right channel supply 40 HPR O Headphone R channel output 41 VCM O Headphone Common-Mode voltage 42 AGND P Analog ground 43 AVDD P Analog supply 44 HP_SPK I 45 HPL O Headphone L channel output 46 PVDDL P Headphone Left channel supply 47 N.C. 48 N.C. Selection between Headphone and Speaker 1: Headphone 0:Speaker Elite Semiconductor Memory Technology Inc. Publication Date: Sep. 2007 Revision: 0.1 3/37