TS34119CD

T S3 4 1 1 9 Low Power Audio Amplifier SOP-8 DIP-8 Pin assignment: 1 . CD 8 . V O2 2 . F C2 7 . Gn d 3 . F C1 6 . Vc c 4. Vin 5 . V O1 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 c losed loop gain is set with tw o ex ternal resis tors. A chip Disable pin per mits pow ering down and/or muting the input signal. The TS34119 is offered in SOP-8 and DIP-8 package. Features ● ● ● ● ● ● ● ● ● Wide operating supply voltage (2~16V) Chip disable input to power down the IC Low quiescent current for battery powered application Lower pow er down quiescent current Drives a w ide range of speaker load (8~100Ω) Output power exceed 250mW with 32Ωspeaker Low total harmonic distor tion Gain adjus table for voice band Requires few exter nal components Ordering Information Part No. TS34119CD C3 TS34119C S RL Package DIP-8 SOP-8 Packi ng 50pc s / T ube 2.5Kpcs / 13” Reel Block Diagram 1/13 Version: A07 T S3 4 1 1 9 Low Power Audio Amplifier Absolute Maximum Rating Parameter Supply Voltage Maximum Input Voltage ( FC1, FC2, CD , Vin) Applied Output Voltage to VO1, VO2 when disabled Maximum Output Current at VO1, VO2 Symbol Vcc Vin Vvo Io Val ue +1 ~ 1 8 V -1.0 ~ Vcc+1.0 -1.0 ~ Vcc+1.0 ± 250 Unit V V V mA o Storage Temperature Range TSTG - 6 5 ~ +1 5 0 C Note: Maximum ratings are those values beyond which damage to the device may occur, func tional operation should be Res tricted to the recommended operating conditions. Recommended Operating Conditions Parameter Symbol Val ue Unit Supply Voltage Vcc +2 ~ 1 6 V V Load Impedance RL 8 ~ 100 Ω Peak Load Current IL 200 mA Differential Gain (5kHz bandw idth) AVD 0 ~ 46 dB V Voltage @ CD ( pin 1) VCD 0 ~ Vcc Note: This device contains protection circuitry to guar d agains t damage due to high s tatic v oltage or electr ic fields. However, precautions mus t 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 mus t always be tied to an appropriate logic voltage level (e.g., either Gnd or Vc c), unused output must be left open. Electrical Specifications (VCD=0V, Ta =25oC; unless otherwise noted.) Parameter Symbol Test Conditi ons @ Vin f3 0 -0 1.5 ---0.5 0.5 0.6 -12 52 >7 0 Max --+0.35 ----1.0 ------- Unit MΩ dB dB MHz mW Amplifiers (AC Characterist ics) AC Input Resistance Ri Open Loop Gain ( Amp. #1) AVOL1 Closed Loop Gain ( Amp. #2) AV2 Gain Bandwidth Pr oduct GB W % Power Supply Rejec tion (Vcc=6.0V, ΔVcc=3.0V) Differential Muting PSRR dB dB 2/13 Version: A07 T S3 4 1 1 9 Low Power Audio Amplifier Electrical Specifications (Continue) Parameter Symbol Test Conditi ons VCC=3V, R L=16 (Rf =75K) Vo VOH VOL ΔVo fIB RFC1 Vcc=6.0V RFC2 18 25 40 Vcc=6V, RL=16 (Rf =75K) Vcc=12V, RL=16 (Rf =75K) Iout=-75mA, 2.0 ≤ Vcc ≤ 16V Iout=75mA, 2.0 ≤ Vcc ≤ 16V Vcc=6V, RL=75KΩ, RL=32Ω Vcc=6.0V -- 30 -100 Mi n 1.0 --- Ty p 1.15 2.65 5.56 Vcc-1.0 (typ) 0.16 0 - 100 150 Max 1.25 ---+3 0 - 200 220 Unit Amplifiers (DC Characterist ics) Output DC Level @ VO1,VO2 Output Level Output DC Offset Voltage (VO1 – VO2) Input Bias Current @ Vin Equivalent Resis tance @ FC1 Equivalent Resis tance @ FC2 Chip D isable (pin 1) Input Voltage Low Input Voltage High Power Supply Vcc=3V, RL=∞, CD =0.8V Power Supply Current Icc Vcc=16V, RL=∞, C D=0.8V Vcc=3V, RL=∞, CD =2V Note: a. Currents into a pin are positiv e, currents out of a pin negative. ---2.7 3.3 65 4.0 5.0 100 mA uA VIL VIH -2.0 --0.8 -Vdc Vdc Vdc mV nA KΩ Typical Temperature Performance ( -20oC < Ta < +70oC) Function Input Bias Current Total Har monic Dis tortion Power Supply Current @ Vin Vcc=6V, RL=32Ω, Po=120mW, f=1kHz Vcc=3V, RL=∞, CD =0V Vcc=3V, RL=∞, CD =2V Conditi on Typical Change ± 40 +0.003 -2.5 -0.03 Units Pa/ C %/ C uA / C o o o 3/13 Version: A07 T S3 4 1 1 9 Low Power Audio Amplifier Pin Function Description Symbol CD FC2 Pin 1 2 Descripti on Chip D isable-Digital input. A logic ”0” (