STEVAL-CCA009V1 STMicroelectronics

STEVAL-CCA009V1 High performance stereo headphone driver demonstration board based on the TS4601B Data brief Features Power supply range: 2.9 V to 5.5 V 107 dB of PSRR at 217 Hz Fully differential inputs 2 I C interface for volume control Digital volume control range from -60 dB to +4 dB 101 dB of SNR A-weighted Independent right and left channel shutdown control Low quiescent current: 4.8 mA typ. at 3.0 V STEVAL-CCA009V1 Low standby current: 2 A max RoHS compliant Description The STEVAL-CCA009V1 demonstration board is designed to evaluate the TS4601B, a stereo headphone driver dedicated to high audio performance and space constrained applications. It is based on low power dissipation, amplifier core technology with capacitor-less outputs and an IC interface. The STEVAL-CCA009V1 demonstration board can drive at a minimum 0.9 Vrms output voltage into 16 and 1.6 Vrms into 10 k , whatever the power supply voltage, in the range from 2.9 V to 5.5 V. 2 The I C interface is used to control the volume by means of 64 steps from -60 dB to +4 dB and to configure the device in multiple modes. The traditionally used output-coupling capacitors can be removed and a dedicated common-mode sense pin suppresses parasitic noise from the jack. TS4601B control software is also provided. November 2010 Doc ID 18258 Rev 1 1/5 For further information contact your local STMicroelectronics sales office. www.st.com 5 Obsolete Product(s) - Obsolete Product(s) Circuit schematic STEVAL-CCA009V1 1 Circuit schematic Figure 1. TS4601 main application &, F F U 76 G 3 F G LWL V H R Y 3 J G W XW S ) Q ,Q/ W /X F G ,Q/ IW , /H 6 3 5,Q E G W 5X G G 5,Q W W , X L 5 S JK Q W WX L 5 S ) Q &, W H LD Y J W H LD Y J G O SS J G F F G & & V F W LO Q L D R F SS L DQ P D 6 7 G 3 3 3 3 2/5 Doc ID 18258 Rev 1 Obsolete Product(s) - Obsolete Product(s) *QG *QG *QG *QG *Q X) X) X) & & & 9F 39V *Q 39 *Q 5H 6X *Q 6&/ 1H 6&/ & 1H 6 JK 2X W 6 & & &Q X) % *Q & & *Q 9R 5 % 6W X) *QG & % 6 = &Q &0 & QSXW - X) &Q & *Q 9F 9R 5 X) 2X /H IW & & *Q &Q &Q 5H *Q 9F *QG 8 *Q &Q % 3R ZH X) & 9F 9F &Q