AN7196ZAN7196Z, Serwisówki TV, Układy Scalone
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ICs for Audio Common Use AN7196Z Dual 15 W BTL power IC for car audio Overview The AN7196Z is an audio power IC developed for the sound output of car audio (dual 15 W). Especially, this circuit has solved the problem of heat radiation design inherent to a single chip IC with 4-channel audio ouput and realized a corresponding space saving at the same time. In addition, it is incorporating various protection cir- cuits to protect the IC from destruction by GND-open short-circuit to GND and power supply surge which are the most important subjects of power IC protection, and the IC will largely contribute to a high reliability design of equipment. It is also incorporating the industry's first perfect muting circuit, which is free from shock noise, so that a shock noise design under the set transient condition can be made easily when the muting circuit is used together with its standby function. The AN7196Z is pin compatible with the AN7191NZ (dual 20 W), so that the identical pattern design is allowed for high-class types as well as popular types. Unit : mm 18.00±0.30 13.50±0.30 4.00±0.20 1.50±0.10 3.60±0.10 1 15 1.27 0.50 +0.20 –0.10 (0.61) R0.55 (1.80) (1.95) 0.25 +0.15 –0.05 (2.54) 19.00±0.30 19.30±0.30 HZIP015-P-0745A Features · Built-in various protection circuits (realizing high breakdown voltage against destruction ) Power supply surge breakdown voltage of 100 V or more Ground open breakdown voltage of 16 V or more · Built-in standby function (free from shock noise at standby on/off) · Built-in muting function (the industry's first) Free from shock noise at mute-on/off Adapting attenuator method so that abnormal sound due to waveform deformation is not generated Attack time, recovery time of 50 ms or less · Space saving design is possible with a small size package A heat radiation design that has been a problem particularly in a 4-ch. single chip IC can be done by the conventional method. · Reduction in external components (parts reduction to half compared with the AN7176K) It eliminates the need for NF and BS electrolytic capacitors, Muting function is unnecessary Power supply choke coil is unnecessary · Provided with beep sound input pin · Pin compatible with the AN7191NZ (dual 20 W) Applications · Car audio 1 n f n n AN7196Z ICs for Audio Common Use n Block Diagram Ch.1 GND 3 Ref. 14 Ch.2 GND Ch.1 Out (-) 4 13 Ch.2 Out (-) Att. Protection Cct. Att. Ch.1 Out (+) 2 Att.Con. 15 Ch.2 Out (+) Att. Att. n Pin Descriptions Pin No. Description Pin No. Description 1 Power supply 9 Grounding (input) 2 Ch.1 output (+) 10 Beep sound input 3 Grounding (output ch.1) 11 Ch.2 input 4 Ch.1 output (-) 12 Ripple filter 5 Standby 13 Ch.2 output (-) 6 Ch.1 input 14 Grounding (output ch.2) 7 Muting 15 Ch.2 output (+) 8 Grounding (sub) n Absolute Maximum Ratings Parameter Symbol Rating Unit Supply voltage * 2 V CC 25 V Peak supply voltage * 3 V surge 80 V Supply current I CC 9.0 A Power dissipation *4 P D 59 W Operating ambient temperature * 1 T opr -30 to +85 °C Storage temperature * 1 T stg - 55 to + 150 ° C Note) * 1 : All items are at T a = 25 ° C, except for the operating ambient temperature and storage temperature. * 2 : Without signal * 3 : Time = 0.2 s * 4: T a = 85 ° C 2 ICs for Audio Common Use AN7196Z n Recommended Operating Range Parameter Symbol Range Unit Supply voltage V CC 8.0 to 18.0 V n Electrical Characteristics at V CC = 13.2 V, f = 1 kHz, T a = 25 ° C Parameter Symbol Conditions Min Typ Max Unit Quiescent current I CQ V IN = 0 mV, R L = 4 W ¾ 120 250 mA Standby current I STB V IN = 0 mV, R L = 4 W ¾ 1 10 mA Output noise voltage * 1 V NO R g = 4.7 kW, R L = 4 W ¾ 0.22 0.5 mV[rms] Voltage gain 1 G V1 V IN = 40 mV, R L = 4 W 32 34 36 dB Total harmonic distortion 1 THD 1 P O = 0.5 W, R L = 4 W ¾ 0.07 0.4 % Maximum output power 1 P O1 THD = 10%, R L = 4 W 12 14 ¾ W Ripple rejection ratio * 1 RR R L = 4 W , R g = 4.7 k W , 60 70 ¾ dB V r = 1 V[rms], f r = 1 kHz Channel balance CB V IN = 40 mV, R L = 4 W ¾ 0 1 dB Cross-talk *1 CT V IN = 40 mV, R L = 4 W, 55 65 ¾ dB R g = 4.7 kW Output offset voltage V Off R g = 4.7 kW, R L = 4 W -250 0 250 mV Muting effect * 1 MT V IN = 40 mV, R L = 4 W 70 82 ¾ dB Input impedance Z i V IN = ± 0.3 V DC 22 28 35 kW Voltage gain 2 G V2 V IN = 40 mV, R L = 2 W 32 34 36 dB Total harmonic distortion 2 THD 2 P O = 0.5 W, R L = 2 W ¾ 0.1 0.5 % Maximum output power 2 P O2 THD = 10%, R L = 2 W 12 20 ¾ W Shock noise * 2 V S R L = 4 W , R g = 4.7 k W - 100 0 100 mV[p-0] V STB = on/off, 50 Hz HPF-on Total harmonic distortion 3 THD 3 V IN = 10 mV, f IN = 20 kHz ¾ 0.10 0.5 % R g = 4.7 k W , R L = ¥ Note) * 1 : Measurement using a bandwidth 15 Hz to 30 kHz (12 dB/OCT) filter. * 2 : For V STB = on/off, change over the standby terminal by the voltages of 0 V and 5 V at the time shown below. Standby terminal voltage 5 V 0 V 120 ms 120 ms 3 AN7196Z ICs for Audio Common Use n Terminal Equivalent Circuits Pin No. Equivalent circuit Description DC Voltage 1 ¾ Supply voltage pin 13.2 V Supply connection pin 2 Ch.1 output pin (+) 6.6 V 1 Pre-amp. Drive circuit Ch.1 positive-phase output pin 2 Drive circuit V REF = 6.6 V 3 15 kW 600 W 3 ¾ GND (output) 0 V Grounding pin for ch.1 output 4 1 Ch.1 output pin (-) 6.6 V Pre-amp. Drive circuit Ch.1 inverted-phase output pin 4 Drive circuit 15 kW V REF = 6.6 V 3 600 W ɹ 5 Standby control pin ¾ 5 10 kW Standby changeover pin Threshold voltage approx. 2.1 V 900 W 6 Ch.1 input pin 0 mV to10 mV 6 Approx. 15 mA Approx. 15 mA Ch.1 input signal applied pin Input impedance 30 kW 200 W 400 W 30 kW 4 ICs for Audio Common Use AN7196Z Terminal Equivalent Circuits (continued) Pin No. Equivalent circuit Description DC Voltage 7 Mute control pin ¾ 7 5 kW Mute changeover pin Threshold voltage approx. 2.0 V 8 ¾ GND (substrate) 0 V Being connected with substrate only 9 ¾ GND (input) 0 V Ground pin for input 10 600 W 15 kW Beep sound input pin 2.1 V V REF = 2.1 V 600 W 15 Beep sound signal input pin Input impedance 25 kW 25 kW 25 kW 10 600 W V REF = 2.1 V 600 W 15 kW 2 11 Ch.2 input pin 0 mV to10 mV 11 Approx. 15 mA Approx. 15 mA Ch. 2 input signal applied pin Input impedance 30 kW 200 W 400 W 30 kW 12 Ripple filter pin 13.0 V V CC 30 kW Output current 3 mA to 10 mA 12 Quick discharge circuit 200 mA 20 kW 5 n [ Pobierz całość w formacie PDF ] |
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