Description
This evaluation board is designed with the TS4994 low power differential audio amplifier. The micro-package DFN10 (dual flat non-leaded 10 pins) allows space saving and good thermal dissipation. The differential gain is set at 1 V/V and can be adapted as necessary through a modification of the R1 to R4 values. Equation 1 On the board, you can set the Cn3 and Cn4 jumpers can be set to modify the input configuration from capacitor coupled to common mode feedback. In capacitor coupled configuration, the -3dB cut-off frequency in Hz is: Equation 2 with R in ohms, C in farads and C1=C2. For more detailed information about component calculation, refer to the TS4994 datasheet. Av R2 R1 ------R4 R3 ------= = R1 R3 = R2 R4 = with with 1 6.28 R1 C1 ⋅ ⋅ ( ) ---------------------------------------------1 6.28 R3 C2 ⋅ ⋅ ( ) ---------------------------------------------= STEVAL-CCA002V1

Features
■ TS4994 low voltage differential audio power amplifier with Programmable standby mode
■ Operates from VCC=2.5 V to 5.5 V
■ 1 W output power @ VCC=5 V, THD+N=1%, F=1 kHz, with 8 W load
■ Ultra low power consumption in standby mode (10 nA)
■ 100 dB PSRR @ 217 Hz in grounded mode (Av=1 V/V)
■ Near zero pop & click
■ Ultra low distortion (0.1%)
■ Module gain set at 1V/V