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| TK15125 Dual Supply Grand Earthing System Audio Signal Mute IC FEATURES s s s s s s Wide Voltage Range (2.5 to 5.5 V) High Volume Attenuation (typ. -89dB) Very Low Signal Distortion (typ. 0.0025%) High Maximum Input Voltage (max. 5.2 VP-P) Very Low Standby Current (typ. 0.6 mA) Minimal External Component Circuitry APPLICATIONS s s s s s Audio Systems Television VTR MD CD DESCRIPTION The TK15125M is a dual power supply Mute IC of the Grand Earthing System that was developed as a low frequency signal attenuator for audio products. The mute function includes two channels which operate simultaneously by one control key. The optional time for the Attack/Release action can be set up by an external timing control capacitor. The TK15125M is available in a SOP-14 Surface Mount Package. TK15125 OUT/IN 1 IN/OUT 1 GND 1 GND 2 GND 3 IN/OUT 2 OUT/IN 2 VDD MUTE-C NC NC NC CONTROL VSS BLOCK DIAGRAM CONTROL MUTE-C VDD CONTROL DRIVER TIMING ORDERING INFORMATION VSS NC NC NC TK15125M Tape/Reel Code OUT/IN 1 IN/OUT 1 IN/OUT 2 OUT/IN 2 GND 1 GND 2 GND 3 Control Lo: Mute off Hi: Mute on TAPE/REEL CODE TL: Tape Left July 1999 TOKO, Inc. Page 1 TK15125 ABSOLUTE MAXIMUM RATINGS Supply Voltage ......................................................... 6 V Power Dissipation (Note 3) ................................ 350 mW Input Frequency .................................................. 100 kHz Storage Temperature Range ................... -55 to +150 C Operating Temperature Range ...................-20 to +60 C Signal Input Voltage ......................................... VSS to VDD TK15121M ELECTRICAL CHARACTERISTICS Test conditions: VCC = 5 V, TA = 25 C, f = 1 kHz, VSIN = 5 VP-P unless otherwise specified. SYMBOL VDD VSS IDD (OFF) IDD (ON) ATT CION CIOFF SWVOFF SWVON SWION VOSAT THD 1 THD 2 GVA VIN (MAX) MR PARAMETER Operating Voltage TEST CONDITIONS MIN 2.5 -2.5 TYP 5.0 -5.0 0.6 12.0 MAX 5.5 -5.5 0.9 17.0 UNITS V V mA mA dB Operating Current, Mute Off Operating Current, Mute On Attenuation Mute On Charge Current Mute Off Discharge Current Mute Control SW, Mute Off Voltage Mute Control SW, Mute On Voltage Mute Control SW, Mute On Current Mute On Output DC Voltage Mute Off Total Harmonic Distortion Voltage Gain Maximum Input Voltage Inner Attenuation Resistance (Note 2) RIN = 300 (Note 1) -85 8.0 1.8 VSS VSS + 2.4 -89 12.0 3.0 18. 0 5.0 VSS + 0.4 VDD 16 2.4 0.0025 25 3.7 0.0070 0.0030 +0.5 5.2 A A V V A mV % % dB VP-P JIS-A Filter ON dB = ~20 kHz THD < 0.01% 168 -0.5 0.0007 0 240 312 Note 1: If an RIN other than 300 is used, the volume attenuation and attack/release times change. Note 2: In the standard application a capacitor is connected between Pin 13 and VSS. Attack is the term used to describe the action of changing the unit from `mute off' to 'mute on'. Release is the term used to describe the action of changing the unit from `mute on' to `mute off'. The standard timing control capacitance is 0.047 F. Note 3: Power dissipation is 350 mW when mounted as recommended. Derate at 2.8 mW/C for operation above 25C. Page 2 July 1999 TOKO, Inc. TK15125 TEST CIRCUIT AND TESTING METHODS A1 VM VDD +5 V + 300 A2 SG 22 F NC GND NC NC 300 V1 SG VSS -5 V TESTING METHODS VM 1) POWER SUPPLY CURRENT * `MUTE OFF' Mode Measure current `A1' while control, Pin 9, is `Lo' (or open). * `MUTE ON' Mode Measure current `A1' while control, Pin 9, is `Hi'. + 22 F 2) ATTENUATION VOLUME * Attenuation is calculated by the following equation while control, Pin 9, is `Hi': ATT = 20Log ( Pin 1(Pin 7) output AC voltage Pin 2(Pin 6) input AC voltage ) 3) CAPACITOR PIN CHARGING AND DISCHARGING CURRENT * Charging Current Measure outflow current `A2' while control, Pin 9, is `Hi' and the voltage at Pin 13 is VSS + 0.75 V. * Discharging Current Measure inflow current `A2' while control, Pin 9, is `Lo (or open)' and the voltage at Pin 13 is VSS + 0.75 V. 4) CONTROL SWITCH VOLTAGE * `MUTE OFF' Mode Gradually elevate Pin 9 voltage above VSS. When the Attack action (Mute On) is implemented at Pin 1 (Pin 7), measure the voltage `V1'. * `MUTE ON' Mode Gradually lower Pin 9 voltage below VDD. When the Release action (Mute Off) is implemented at Pin 1 (Pin 7), measure the voltage `V1'. 5) `MUTE ON' OUTPUT DC VOLTAGE * Measure output voltage at Pin 1 (Pin 7) while control, Pin 9, is `Hi' and there is no input. 6) TOTAL HARMONIC DISTORTION * Measure the distortion of the Pin 1 (Pin 7) output while control, Pin 9, is `Lo' (or open). 7) SIGNAL VOLTAGE GAIN * Signal gain is calculated by the following equation while control, Pin 9, is `Lo' (or open). GV = 20Log ( Pin 1(Pin 7) output AC voltage Pin 2(Pin 6) input AC voltage ) 8) INNER ATTENUATION RESISTANCE * Using a multimeter, measure the resistance between Pin 1 (Pin 7) and Pin 2 (Pin 6) while the power supply is off. 9) MAXIMUM INPUT SIGNAL VOLTAGE * While control, Pin 9, is `Lo' (or open), gradually elevate Pin 2 (Pin 6) voltage above 0 VP-P. When the distortion becomes 0.01% at the output of Pin 1 (Pin 7), measure the AC voltage. July 1999 TOKO, Inc. Page 3 TK15125 TYPICAL PERFORMANCE CHARACTERISTICS TA = 25 C, unless otherwise specified. SUPPLY CURRENT vs. SUPPLY VOLTAGE 14 0.7 Mute: off 13 Mute: on 12 ICC (mA) SUPPLY CURRENT vs. SUPPLY VOLTAGE SUPPLY CURRENT vs. TEMPERATURE Mute: on ICC (mA) 0.6 12 ICC (mA) 0 2 3 4 VCC (V) CHARGE CURRENT (Mute Pin) vs. TEMPERATURE 5 6 10 0.5 11 8 0.4 0 2 3 4 VCC (V) 5 6 10 6 -40 -20 0 20 TA (C) 40 60 80 CONTROL THRESHOLD VOLTAGE vs. TEMPERATURE -3 DISCHARGE CURRENT (Mute Pin) vs. TEMPERATURE 4 16 15 CURRENT (A) VCONT (V) 14 13 12 11 CURRENT (A) -20 0 20 TA (C) 40 60 80 -3.5 3 -4 2 -4.5 -5 -40 -20 0 20 TA (C) 40 60 80 10 -40 0 -40 -20 0 20 TA (C) 40 60 80 TOTAL HARMONIC DISTORTION vs. FREQUENCY 1 TOTAL HARMONIC DISTORTION vs. OUTPUT VOLTAGE 1 THD (%) 0.01 0.001 0.01 THD (%) 0.1 0.1 0.01 0.1 f (kHz) 1 10 100 0.001 0.01 0.1 1 10 100 VOUT (VP-P) Page 4 July 1999 TOKO, Inc. TK15125 TYPICAL PERFORMANCE CHARACTERISTICS (CONT.) TA = 25 C, unless otherwise specified. ATTENUATION VOLUME vs. FREQUENCY -20 -40 ATTENUATION VOLUME vs. MUTE RESISTANCE -40 ATT (dB) -60 ATT (dB) 0.1 f (kHz) 1 10 100 -60 -80 -80 -100 -100 0.01 -120 0.01 0.1 1 10 100 RESISTANCE (k) CROSS TALK vs. FREQUENCY +5 V -80 CROSS TALK (dB) 300 I/O 1 O/I 1 O/I 2 V -90 ~ 5 VP-P 300 I/O 2 ~ -5 V -100 Cross Talk Test Circuit -110 0.01 0.1 f (kHz) 1 10 100 STANDARD APPLICATION +5 V OUT 1 + 300 IN 1 0.047 F 22 F 300 IN 2 on on off -5 V 22 F + off OUT 2 July 1999 TOKO, Inc. Page 5 TK15125 TERMINAL VOLTAGE AND EQUIVALENT CIRCUIT PIN NO. 1 2 6 7 SYMBOL OUT/IN 1 IN/OUT 1 IN/OUT 2 OUT/IN 2 DC VOLTAGE Floating / 0 V Floating / 0 V Floating / 0 V Floating / 0 V 120 120 EQUIVALENT CIRCUIT VDD EXPLANATION Pin 1: Output for Pin 2. Pin 2: Input for Pin 1. Pin 6: Input for Pin 7. Pin 7: Output for Pin 6. 1 7 26 Note 1 3 4 5 8 9 GND 1 GND 2 GND 3 VSS Control 0V 0V 0V -5.5 ~ -2.5 V -5.0 V VDD GND pin. Ground pin. Note 2 VSS pin. Negative Voltage Pin. Control Pin for the Mute on/off. 47 K 9 47 K VSS 10 11 12 13 NC NC NC Mute-C Floating Floating Floating -5.0 V / 3.2 V VDD No Connection Pin. Note 3 Pin for Timing Capacitor for Attack/Release time. VSS Note 4 14 VDD 2.5 ~ 5.5 V VDD Pin. Positive Voltage Pin. Note 1: Even if the input and output became opposite, the action is the same. Note 2: Connect all GND pins to the Ground. Note 3: Although all NC pins are not connected internally to the IC, signals should not be externally applied to these pins. Note 4: In the standard application a capacitor is connected between Pin 13 and VSS. Attack is the term used to describe the action of changing the unit from `mute on' to `mute off'. The standard timing control capacitance is 0.047 F. Page 6 July 1999 TOKO, Inc. TK15125 TIMING-CHART AND ACTION TIME AT MUTE Test conditions: VCC = 5 V, Timing Capacitor = 0.047 F The following values are typical characteristics; accordingly they are not guaranteed values. ATTACK ACTION START (MUTE ON) When the attack action is started (`mute on' is initiated), the capacitor on Pin 13 starts to charge. The voltage at the capacitor on Pin 13 rises by 1.8 V. The 1.8 V rise time can be calculated by the following equation: T1 Capacitance X 1.8 V = Charge Current 0.047 F X 1.8 V 12 A = 7.1 msec When the capacitor of Pin 13 rises by 1.8 V to -3.2 V as detected by the upper limit circuit, the mute action functions (VSS + 1.8 V = -3.2 V). In this estimate, when the capacitor on Pin 13 has risen by 0.7 V to 0.8 V, the attenuation is approximately 90% of the final attenuation achieved. This results in the following calculation and timing chart. Control SW_on -3 V Capacitor pin voltage Pin 13 0.75 V 1.8 V T2 0.047 F X 0.75 V 12 A -4 V = 2.9 msec This time is the attack time. Input wave -5 V 1 2 T2 34 56 T1 78 (ms) Output wave RELEASE ACTION START (MUTE OFF) When the release action is started (`mute off' is initiated) the capacitor on Pin 13 starts to discharge. The voltage at the capacitor on Pin 13 falls to VSS + 10 mV. This fall time can be calculated by the following equation: T3 Capacitance X 1.8 V = Disharge Current 0.047 F X 1.8 V 3 A = 28 msec In this estimate, when the capacitor on Pin 13 has fallen to VSS + 0.7 V to 0.8 V, the signal is restored to approximately 90% of its value. This results in the following calculation and timing chart: Control SW_off -3 V T4 0.047 F X 1.05 V 3 A 1.8 V -4 V Pin 13 1.05 V -5 V Capacitor pin voltage 10 T4 Output wave 20 T3 30 (ms) = 16 msec This time is the release time. Accordingly, the release action time is 12 msec (T3 - T4 = 28 msec - 16 msec = 12 msec). July 1999 TOKO, Inc. Page 7 TK15125 PACKAGE OUTLINE Marking Information TK15125M 0.76 SOP-14 15125 1.27 Toko Mark 14 Mark 8 YYY KOREA 3.9 AAAAA e 1.27 Recommended Mount Pad 1 Lot No. 7 Country of Origin 8.65 0.5 0 ~10 1.45 + 0.3 1.64 0.42 0.12 M 0.1 0 ~ 0.25 e 1.27 + 0.3 6.07 Dimensions are shown in millimeters Tolerance: x.x = 0.2 mm (unless otherwise specified) Toko America, Inc. Headquarters 1250 Feehanville Drive, Mount Prospect, Illinois 60056 Tel: (847) 297-0070 Fax: (847) 699-7864 TOKO AMERICA REGIONAL OFFICES Midwest Regional Office Toko America, Inc. 1250 Feehanville Drive Mount Prospect, IL 60056 Tel: (847) 297-0070 Fax: (847) 699-7864 Western Regional Office Toko America, Inc. 2480 North First Street , Suite 260 San Jose, CA 95131 Tel: (408) 432-8281 Fax: (408) 943-9790 Eastern Regional Office Toko America, Inc. 107 Mill Plain Road Danbury, CT 06811 Tel: (203) 748-6871 Fax: (203) 797-1223 Semiconductor Technical Support Toko Design Center 4755 Forge Road Colorado Springs, CO 80907 Tel: (719) 528-2200 Fax: (719) 528-2375 Visit our Internet site at http://www.tokoam.com The information furnished by TOKO, Inc. is believed to be accurate and reliable. However, TOKO reserves the right to make changes or improvements in the design, specification or manufacture of its products without further notice. TOKO does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents or other rights of third parties which may result from the use of its products. No license is granted by implication or otherwise under any patent or patent rights of TOKO, Inc. Page 8 (c) 1999 Toko, Inc. All Rights Reserved IC-119-TK119xx 0798O0.0K 0.2 e1 5.4 July 1999 TOKO, Inc. Printed in the USA |
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