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TS2012EIJTSTN/a700avaiFilter-free stereo 2 x 2.8 W class D audio power amplifier


TS2012EIJT ,Filter-free stereo 2 x 2.8 W class D audio power amplifierAbsolute maximum ratingsSymbol Parameter Value Unit(1)V Supply voltage 6VCC(2)V Input voltage GND t ..
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TS2012EIJT
Filter-free stereo 2 x 2.8 W class D audio power amplifier
April 2014 DocID026152 Rev 1 1/32
TS2012EI

Filter-free Flip Chip stereo 2 x 2.5 W class D
audio power amplifier
Datasheet - production data
Features
Operates from VCC= 2.5 to 5.5V Dedicated standby mode active low for each
channel Output power per channel: 1.15 W at 5 V or
0.63 W at 3.6 V into 8  with 1% THD+N max. Output power per channel: 1.85 W at 5 V into  with 1% THD+N max. Output short-circuit protection Four gain setting steps: 6, 12, 18, 24dB Low current consumption PSSR: 63 dB typ. at 217 Hz. Fast startup phase: 7.8ms Thermal shutdown protection Flip Chip 16 bump lead-free package
Applications
Cellular phones PDA
Description

The TS2012EI is a fully-differential stereo class D
power amplifier able to drive up to 1.15 W into an  load at 5 V per channel. It achieves better
efficiency compared to typical class AB audio
amps.
The device has four different gain settings utilizing
two digital pins: G0 and G1.
Pop and click reduction circuitry provides low
on/off switch noise while allowing the device to
start within 8 ms.
Two standby pins (active low) allow each channel
to be switched off separately.
The TS2012EI is available in a Flip Chip 16 bump
lead-free package.
Table 1. Device summary
Contents TS2012EI
2/32 DocID026152 Rev 1
Contents Absolute maximum ratings and operating conditions . . . . . . . . . . . . . 3 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.1 Electrical characteristics tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Electrical characteristic curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.1 Differential configuration principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.2 Gain settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.3 Common mode feedback loop limitations . . . . . . . . . . . . . . . . . . . . . . . . 21
4.4 Low frequency response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.5 Decoupling of the circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.6 Wake-up time (tWU ) and shutdown time (t STBY ) . . . . . . . . . . . . . . . . . . . . 23
4.7 Consumption in shutdown mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.8 Single-ended input configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.9 Output filter considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.10 Short-circuit protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.11 Thermal shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
DocID026152 Rev 1 3/32
TS2012EI Absolute maximum ratings and operating conditions Absolute maximum ratings and operating conditions

Table 2. Absolute maximum ratings All voltage values are measured with respect to the ground pin. The magnitude of the input signal must never exceed VCC + 0.3 V / GND - 0.3V. The device is protected in case of over temperature by a thermal shutdown active at 150°C. Exceeding the power derating curves during a long period will cause abnormal operation. Human body model: 100 pF discharged through a 1.5 kresistor between two pins of the device, done for all couples of pin combinations with other pins floating. Machine model: a 200 pF cap is charged to the specified voltage, then discharged directly between two pins of the device with no external series resistor (internal resistor < 5 ), done for all couples of pin combinations with other pins floating. Implemented short-circuit protection protects the amplifier against damage by short-circuit between positive and negative outputs of each channel and between outputs and ground.
Absolute maximum ratings and operating conditions TS2012EI
4/32 DocID026152 Rev 1
Table 3. Operating conditions I Voo I  40 mV max with all differential gains except 24 dB. For 24 dB gain, input decoupling capacitors are mandatory. Without any signal on standby pin, the device is in standby (internal 300 k +/-20% pull-down resistor). Minimum current consumption is obtained when VSTBY = GND. Between G0, G1pins and GND, there is an internal 300 k (+/-20%) pull-down resistor. When pins are floating, the gain is 6 dB. In full standby (left and right channels OFF), these resistors are disconnected (HiZ input). With a 4-layer PCB.
TS2012EI Typical application
2 Typical application
Typical application TS2012EI
6/32 DocID026152 Rev 1


Table 4. External component description
Table 5. Pin description
DocID026152 Rev 1 7/32
TS2012EI Electrical characteristics
3 Electrical characteristics
3.1 Electrical characteristics tables

Table 6. VCC = +5 V, GND = 0 V, Vic =2.5 V, Tamb = 25° C (unless otherwise specified)
Electrical characteristics TS2012EI
8/32 DocID026152 Rev 1 Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is the superimposed sinus signal to VCC at f = 217Hz. See Section 4.6: Wake-up time (tWU) and shutdown time (tSTBY) on page23.
Table 6. VCC = +5 V, GND = 0 V, Vic=2.5 V, Tamb = 25° C (unless otherwise specified) (continued)
DocID026152 Rev 1 9/32
TS2012EI Electrical characteristics

Table 7. VCC = +3.6 V, GND = 0 V, Vic =1.8V , Tamb = 25° C (unless otherwise specified)
Electrical characteristics TS2012EI
10/32 DocID026152 Rev 1 Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is the superimposed sinus signal to VCC at f = 217Hz. See Section 4.6: Wake-up time (tWU) and shutdown time (tSTBY) on page23.
Table 7. VCC = +3.6 V, GND = 0 V, Vic =1.8V, Tamb = 25° C (unless otherwise specified) (continued)
DocID026152 Rev 1 11/32
TS2012EI Electrical characteristics
Table 8. VCC = +2.5 V, GND = 0 V, Vic = 1.25 V, Tamb = 25 °C (unless otherwise specified)
Electrical characteristics TS2012EI
12/32 DocID026152 Rev 1 Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is the superimposed sinus signal to VCC at f = 217Hz. See Section 4.6: Wake-up time (tWU) and shutdown time (tSTBY) on page23.
Table 8. VCC = +2.5 V, GND = 0 V, Vic = 1.25 V, Tamb = 25 °C (unless otherwise specified) (continued)
DocID026152 Rev 1 13/32
TS2012EI
3.2
Electrical characteristics DocID026152 Rev 1
DocID026152 Rev 1 15/32
TS2012EI Electrical characteristics




Figure 4. Current consumption vs. power
supply voltage
Figure 5. Current consumption vs. standby
voltage (one channel)
Figure 6. Efficiency vs. output power
(one channel)
Figure 7. Efficiency vs. output power
(one channel)
Figure 8. Efficiency vs. output power
(one channel)
Figure 9. Efficiency vs. output power
(one channel)
Electrical characteristics TS2012EI
16/32 DocID026152 Rev 1



Figure 10. Efficiency vs. output power
(one channel)
Figure 11. Efficiency vs. output power
(one channel)
Figure 14. PSRR vs. frequency Figure 15. PSRR vs. common mode input
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