TS34119 Low Power Audio Amplifier SOP-8 Pin assignment: 1. CD 8. VO2 2. FC2 7. Gnd 3. FC1 6. Vcc 4. Vin 5. VO1 General Description The TS34119 is a low power audio amplifier, it integrated circuit intended (primarily) for telephone applications such as in speakerphones. It provides differential speaker outputs to maximize output swing at low supply voltages (2.0V minimum). Coupling capacitors to the speaker are not required. Open loop gain is 80dB, and the closed loop gain is set with two external resistors. A chip Disable pin permits powering down and/or muting the input signal. Features Ordering Information Wide operating supply voltage (2~16V) Part No. Package Packing Chip disable input to power down the IC TS34119CS RLG SOP-8 2,500pcs / 13 Reel Low quiescent current for battery powered G denotes for Halogen free products application Lower power down quiescent current Drives a wide range of speaker load (8~100) Output power exceed 250mW with 32speaker Low total harmonic distortion Gain adjustable for voice band Requires few external components Block Diagram Document Number: DS P0000240 1 Version: C15 TS34119 Low Power Audio Amplifier Absolute Maximum Rating Parameter Symbol Value Unit Supply Voltage Vcc +1 ~ 18V V Maximum Input Voltage (FC1, FC2, CD, Vin) Vin -1.0 ~ Vcc+1.0 V Applied Output Voltage to VO1, VO2 when disabled Vvo -1.0 ~ Vcc+1.0 V Maximum Output Current at VO1, VO2 Io 250 mA o Storage Temperature Range T -65 ~ +150 C STG Note: Maximum ratings are those values beyond which damage to the device may occur, functional operation should be Restricted to the recommended operating conditions. Recommended Operating Conditions Parameter Symbol Value Unit Supply Voltage Vcc +2 ~ 16V V Load Impedance RL 8 ~ 100 Peak Load Current IL 200 mA AVD 0 ~ 46 dB Differential Gain (5kHz bandwidth) VCD 0 ~ Vcc V Voltage CD (pin 1) Note: This device contains protection circuitry to guard against damage due to high static voltage or electric fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltage to this high impedance circuit. For proper operation, Vin and Vout should be constrained to the range Gnd (Vin or Vout) Vcc. Unused inputs must always be tied to an appropriate logic voltage level (e.g., either Gnd or Vcc), unused output must be left open. o Electrical Specifications (VCD=0V, Ta =25 C unless otherwise noted.) Parameter Symbol Test Conditions Min Typ Max Unit Amplifiers (AC Characteristics) AC Input Resistance Ri Vin -- >30 -- M Open Loop Gain (Amp. 1) AVOL1 f<100Hz 80 -- -- dB Closed Loop Gain (Amp. 2) AV2 Vcc=6V,f=1KHz, R =32 -0.35 0 +0.35 dB L Gain Bandwidth Product GBW -- 1.5 -- MHz Vcc=3V,R =16,THD10% 55 -- -- L Output Power Pout Vcc=6V,R =32,THD10% 250 -- -- mW L Vcc=12V,R =100,THD10% 400 -- -- L Vcc=6V,R =32, Po=125mW -- 0.5 1.0 L Total Harmonic Distortion Vcc3V,R =8, Po=20mW -- 0.5 -- L THD % (f=1KHz) Vcc12V, R =32, L -- 0.6 -- Po=200mW C1=, C2=0.01uF 50 -- -- Power Supply Rejection PSRR C1=0.1uF, C2=0, f=1KHz -- 12 -- dB (Vcc=6.0V, Vcc=3.0V) C1=1uF, C2=5uF, f=1KHz -- 52 -- Vcc=6V, 1KHz f 20KHz, Differential Muting GMT -- >70 -- dB CD=2V Document Number: DS P0000240 2 Version: C15