MC34119D

Order this document by MC34119/D       The MC34119 is a low power audio amplifier intergrated circuit intended (primarily) for telephone applications, such as in speakerphones. It provides differential speaker outputs to maximize output swing at low supply voltages (2.0 V minimum). Coupling capacitors to the speaker are not required. Open loop gain is 80 dB, and the closed loop gain is set with two external resistors. A Chip Disable pin permits powering down and/or muting the input signal. The MC34119 is available in standard 8–pin DIP, SOIC package, and TSSOP package. • Wide Operating Supply Voltage Range (2.0 V to 16 V), Allows Telephone Line Powered Applications • Low Quiescent Supply Current (2.7 mA Typ) for Battery Powered Applications • Chip Disable Input to Power Down the IC • • • • • • LOW POWER AUDIO AMPLIFIER SEMICONDUCTOR TECHNICAL DATA 8 Low Power–Down Quiescent Current (65 µA Typ) 1 Drives a Wide Range of Speaker Loads (8.0 Ω and Up) P SUFFIX PLASTIC PACKAGE CASE 626 Output Power Exceeds 250 mW with 32 Ω Speaker Low Total Harmonic Distortion (0.5% Typ) Gain Adjustable from 46 dB for Voice Band 8 Requires Few External Components 1 D SUFFIX PLASTIC PACKAGE CASE 751 (SO–8) MAXIMUM RATINGS Rating Value Unit –1.0 to +18 Vdc ±250 mA –1.0, VCC + 1.0 –1.0, VCC + 1.0 Vdc –55, +140 °C Supply Voltage Maximum Output Current at VO1, VO2 Maximum Voltage @ Vin, FC1, FC2, CD Applied Output Voltage to VO1, VO2 when disabled Junction Temperature NOTE: 8 1 DTB SUFFIX PLASTIC PACKAGE CASE 948J (TSSOP) ESD data available upon request. PIN CONNECTIONS Block Diagram and Simplified Application Rf 75 k 6 Audio Input Ci 0.1 C1 1.0 µF Ri 3.0 k Vin 4 FC1 3 – + VCC 5 #1 50 k 125 k 2 8 VO2 FC2 2 7 Gnd FC1 3 6 VCC Vin 4 5 VO1 VO1 Speaker 4.0 k C2* 5.0 µF CD 1 4.0 k – + (Top View) 8 #2 ORDERING INFORMATION FC2 Bias Circuit 50 k VO2 1 CD Chip Disable Device Operating Temperature Range Package MC34119 7 * = Optional Differential Gian = 2 x Rf Ri Plastic DIP MC34119P Gnd This device contains 45 active transistors. MC34119D TA = –20° to +70°C MC34119DTB  Motorola, Inc. 1996 MOTOROLA ANALOG IC DEVICE DATA SO–8 TSSOP Rev 1 1 MC34119 RECOMMENDED OPERATING CONDITIONS Characteristics Symbol Min Max Unit VCC VCD +2.0 0 +16 VCC Vdc Vdc Load Impedance RL 8.0 – Ω Peak Load Current IL – ±200 mA AVD 0 46 dB TA –20 +70 °C Supply Voltage Voltage @ CD (Pin 1) Differential Gain (5.0 kHz Bandwidth) Ambient Temperature ELECTRICAL CHARACTERISTICS (TA = 25°C, unless otherwise noted.) Symbol Min Typ Max Unit ri – >30 – MΩ AVOL1 80 – – dB Closed Loop Gain (Amplifier #2, VCC = 6.0 V, f = 1.0 kHz, RL = 32 Ω) AV2 –0.35 0 +0.35 dB Gain Bandwidth Product GBW – 1.5 – MHz POut3 POut6 POut12 55 250 400 – – – – – – – – – 0.5 0.5 0.6 1.0 – – 50 – – – 12 52 – – – Characteristics AMPLIFIERS (AC CHARACTERISTICS) AC Input Resistance (@ VIn) Open Loop Gain (Amplifier #1, f < 100 Hz) Output Power; VCC = 3.0 V, RL = 16 Ω, THD ≤ 10% VCC = 6.0 V, RL = 32 Ω, THD ≤ 10% VCC = 12 V, RL = 100 Ω, THD ≤ 10% Total Harmonic Distortion (f = 1.0 kHz) (VCC = 6.0 V, RL = 32 Ω, Pout = 125 mW) (VCC ≥ 3.0 V, RL = 8.0 Ω, Pout = 20 mW) (VCC ≥ 12 V, RL = 32 Ω, Pout = 200 mW) mW THD % Power Supply Rejection (VCC = 6.0 V, ∆VCC = 3.0 V) (C1 = ∞, C2 = 0.01 µF) (C1 = 0.1 µF, C2 = 0, f = 1.0 kHz) (C1 = 1.0 µF, C2 = 5.0 µF, f = 1.0 kHz) PSRR Differential Muting (VCC = 6.0 V, 1.0 kHz ≤ f ≤ 20 kHz, CD = 2.0 V) GMT – >70 – dB VO(3) VO(6) VO(12) 1.0 – – 1.15 2.65 5.65 1.25 – – Vdc VOH VOL – – VCC – 1.0 0.16 – – –30 0 +30 dB AMPLIFIERS (DC CHARACTERISTICS) Output DC Level @ VO1, VO2, VCC = 3.0 V, RL = 16 (Rf = 75 k) VCC = 6.0 V VCC = 12 V Output Level High (Iout = –75 mA, 2.0 V ≤ VCC ≤ 16 V) Low (Iout = 75 mA, 2.0 V ≤ VCC ≤ 16 V) Vdc Output DC Offset Voltage (VO1–VO2) (VCC = 6.0 V, Rf = 75 kΩ, RL = 32 Ω) ∆VO Input Bias Current @ Vin (VCC = 6.0 V) IIB – –100 –200 RFC1 RFC2 100 18 150 25 220 40 Input Voltage Low High VIL VIH – 2.0 – – 0.8 – Input Resistance (VCC = VCD = 16 V) RCD 50 90 175 kΩ ICC3 ICC16 ICCD – – – 2.7 3.3 65 4.0 5.0 100 mA mA µA Equivalent Resistance @ FC1 (VCC = 6.0 V) @ FC2 (VCC = 6.0 V) mV nA kΩ CHIP DISABLE (Pin 1) Vdc POWER SUPPLY Power Supply Current (VCC = 3.0 V, RL = ∞, CD = 0.8 V) (VCC= 16 V, RL = ∞, CD = 0.8 V) (VCC = 3.0 V, RL = ∞, CD = 2.0 V) NOTE: Currents into a pin are positive, currents out of a pin are negative. 2 MOTOROLA ANALOG IC DEVICE DATA MC34119 PIN FUNCTION DESCRIPTION Symbol Pin Description CD 1 Chip Disable – Digital input. A Logic “0” (