TS2007FC STMicroelectronics, TS2007FC Datasheet

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TS2007FC

Manufacturer Part Number
TS2007FC
Description
3 W Filter-free Class D Audio Power Amplifier With 6 Or 12 Db Fixed Gain Select
Manufacturer
STMicroelectronics
Datasheet
Features
Applications
Description
The TS2007FC is a class D power audio
amplifier. Able to drive up to 1.4 W into an 8 Ω
load at 5 V, it achieves better efficiency than
typical class AB audio power amplifiers.
This device can switch between two gain settings,
6 dB or 12 dB via a logic signal on the gain select
pin. Pop and click reduction circuitry provides low
on/off switch noise and allows the device to start
within 1 ms typically.
August 2008
Operates from V
Standby mode active low
Output power: 1.4 W at 5 V or 0.5 W at 3.0 V
into 8 Ω with 1% THD+N max.
Output power: 2.3 W at 5V or 0.75 W at 3.0 V
into 4 Ω with 1% THD+N max.
Two fixed gain selects: 6 dB or 12 dB
Low current consumption
Efficiency: 86% typical
Signal-to-noise ratio: 90 dB typical
PSRR: 68 dB typical at 217 Hz with 6 dB gain
PWM base frequency: 280 kHz
Low pop and click noise
Thermal shutdown protection
Output short-circuit protection
Flip-chip lead-free 9-bump package with back
coating in option.
Cellular phone
PDA
Notebook PC
CC
=2.4 V to 5.5 V
3 W filter-free class D audio power amplifier
Rev 1
A standby mode function (active low) keeps the
current consumption down to 1 μA typical.
The TS2007FC is available in a 9-bump flip-chip
lead-free package.
with 6 or 12 dB fixed gain select
TS2007EIJT - 9-bump flip-chip
OUT-
GS
IN+
Pinout (top view)
VCC
GND
VCC
TS2007FC
STBY
OUT+
IN-
www.st.com
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TS2007FC Summary of contents

Page 1

... PDA ■ Notebook PC Description The TS2007FC is a class D power audio amplifier. Able to drive up to 1.4 W into an 8 Ω load achieves better efficiency than typical class AB audio power amplifiers. This device can switch between two gain settings via a logic signal on the gain select pin ...

Page 2

... Differential configuration principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 4.2 Gain settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 4.3 Common mode feedback loop limitations . . . . . . . . . . . . . . . . . . . . . . . . . 20 4.4 Low frequency response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 4.5 Circuit decoupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 4.6 Wake-up time (t 4.7 Shutdown time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 4.8 Consumption in shutdown mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 4.9 Single-ended input configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 4.10 Output filter considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 4.11 Short-circuit protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 4.12 Thermal shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 5 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 6 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 2/ TS2007FC ...

Page 3

... TS2007FC 1 Absolute maximum ratings and operating conditions Table 1. Absolute maximum ratings (AMR) Symbol V Supply voltage CC V Input voltage in T Operating free-air temperature range oper T Storage temperature stg T Maximum junction temperature j R Thermal resistance junction to ambient thja P Power dissipation d Human body model ...

Page 4

... Without any signal on GS pin, the device gain configuration (internal 300 kΩ pull up resistor). 5. With mounted on 4-layer PCB. 4/28 Parameter (1) (2) (4) (5) , the device is in standby (internal 300 kΩ pull down resistor). STBY = GND. STBY TS2007FC Value Unit 2.4 to 5.5 V GND GND + 0. 0 1.4 ≤ ...

Page 5

... TS2007FC 2 Application information Table 3. External component description Components C Supply capacitor that provides power supply filtering. s Input coupling capacitors (optional) that block the DC voltage at the amplifier input C terminal. These capacitors also form a high pass filter with See Table 4. Pin description Pin name ...

Page 6

... V out ripple ripple Min. Typ. Max. 2.5 1 2.3 1.4 3 1. µ 11 190 280 106 77 101 =217 Hz. CC TS2007FC Unit µ 12.5 dB 6.5 82 kΩ 370 kHz µV rms ...

Page 7

... TS2007FC Table +4.2 V, GND = Symbol Supply current input signal, no load (1) Standby current I CC-STBY No input signal, V STBY Output offset voltage V oo Floating inputs Output power THD = 1% max kHz THD = 1% max kHz THD = 10% max kHz, R ...

Page 8

... V out ripple ripple Min. Typ. Max. 1.7 3.1 0. 1.2 0.7 1.55 0.9 0. 11.5 12 12.5 5 190 280 370 104 217 Hz. CC TS2007FC Unit mA µ kΩ kHz μV RMS ...

Page 9

... TS2007FC Table +3.0 V, GND = Symbol Supply current input signal, no load (1) Standby current I CC-STBY No input signal, V STBY Output offset voltage V oo Floating inputs Output power THD = 1% max kHz THD = 1% max kHz THD = 10% max kHz, R ...

Page 10

... V is the superimposed sinus signal to V ripple ripple Min. Typ. Max. 1.45 2.5 0 0.64 0.39 0.83 0.49 0. 11.5 12 12.5 5 190 280 370 100 217 Hz. CC TS2007FC Unit mA µ kΩ kHz µV RMS ...

Page 11

... TS2007FC 3.2 Electrical characteristic curves The graphs shown in this section use the following abbreviations: ● µ µH = pure resistor + very low series resistance inductor L Filter = LC output filter (1 µF+ 30 µH for 4 Ω and 0.5 µF+15 µH for 8 Ω) ● All measurements are done with C ...

Page 12

... THD+N vs. frequency PSRR vs. frequency PSRR vs. common mode input voltage CMRR vs. frequency CMRR vs. common mode input voltage Gain vs. frequency Output offset vs. common mode input voltage Power derating curves Startup and shutdown phase 12/28 Description TS2007FC Table 10. Figure Figure 4 Figure 5 Figure 6 Figure 7 to Figure 12 Figure ...

Page 13

... TS2007FC Figure 4. Current consumption vs. power supply voltage 3.5 No load ° 3.0 AMB 2.5 2.0 1.5 1.0 0.5 0.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 Power Supply Voltage (V) Figure 6. Current consumption vs. standby voltage 4 3 Vcc= Vcc=2. Standby Voltage (V) Figure 8. Efficiency vs. output power 100 80 Efficiency 60 Power 40 Dissipation 20 0 0.0 0.5 1.0 Output Power (W) Figure 5. 1.4 No load Vstdby = GND 1 ...

Page 14

... AMB 0.1 0.2 0.3 0.4 0.5 0.6 0.7 Output Power (W) voltage ° AMB Ω ≥ μ RL Ω RL=8 3.0 3.5 4.0 4.5 Power supply voltage (V) Ω μ Vcc= 100Hz G = +6dB Vcc=4.2V BW < 30kHz ° Vcc=3.6V AMB Vcc=3V Vcc=2.7V 0.1 Output power (W) TS2007FC 0.20 0.18 0.16 0.14 0.12 0.10 0.08 0.06 ≥ μ 10% 0.04 0.02 ° C 0.00 0.8 0.9 ≥ μ 5.0 5.5 1 ...

Page 15

... TS2007FC Figure 16. THD+N vs. output power 10 Ω μ Vcc= 100Hz G = +6dB Vcc=4.2V BW < 30kHz ° Vcc=3. AMB Vcc=3V Vcc=2.7V 0.1 0.01 0.01 0.1 Output power (W) Figure 18. THD+N vs. output power 10 Ω μ Vcc=4. 1kHz Vcc=3. +6dB BW < 30kHz Vcc=3V ° Tamb = 25 ...

Page 16

... Po=700mW Po=350mW 100 1000 Frequency (Hz) Vcc = 3V Ω μ +6dB BW < 30kHz ° AMB Po=500mW Po=250mW 100 1000 Frequency (Hz) Vcc = 2.7V Ω μ +6dB BW < 30kHz Po=400mW ° AMB Po=200mW 100 1000 Frequency (Hz) TS2007FC 10000 10000 10000 ...

Page 17

... TS2007FC Figure 28. THD+N vs. frequency 10 Vcc = 2.7V Ω μ +6dB BW < 30kHz Po=250mW ° AMB Po=125mW 0.1 0.01 100 Frequency (Hz) Figure 30. PSRR vs. common mode input voltage 0 Vripple = 200mVpp - +6dB F = 217Hz -20 ≥ Ω ≥ μ ° -30 AMB ...

Page 18

... Set Gain = +6dB Vin = 500mVpp ° AMB 100 1000 Frequency (Hz) input voltage G=+12dB 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Common Mode Input Voltage (V) input voltage G=+12dB 0.0 0.5 1.0 1.5 Common Mode Input Voltage (V) TS2007FC H μ H Ω μ +15 H 10000 G=+6dB Vcc = 5V Ω μ ° AMB 4.0 4.5 5.0 G=+6dB Vcc = 2.7V Ω ...

Page 19

... TS2007FC Figure 40. Power derating curves 1.6 1.4 Mounted on a 4-layer PCB 1.2 1.0 0.8 0.6 0.4 No Heat sink 0.2 AMR value 0 Ambiant Temperature ( Figure 42. Startup and shutdown phase G=6 dB F=10 kHz in pp Vo1 Vo2 Standby Vo1 - Vo2 Figure 41. Startup and shutdown phase Vo1 Vo2 Standby ...

Page 20

... Gain (dB there is an internal 300 for any DC common mode bias input voltage. CC form a first-order high-pass filter with cut-off in to Table 9). Gain (V/ Ω resistor. When the pin is floating Table 2: Operating conditions), the common has a greater effect. in TS2007FC ...

Page 21

... TS2007FC So, for a desired cut-off frequency F with The input impedance Z is also a tolerance around the typical value (see tolerance, you can also calculate tolerance of the F ● 1.103 CLmax ● F 0.915 = CLmin 4.5 Circuit decoupling A power supply capacitor, referred The TS2007 has a typical switching frequency of 280 kHz and output fall and rise time of less than or equal ...

Page 22

... Table 5 to Table Gain select control GS Cin C1 IN- - Gain A1 Select + IN+ Cin Standby Control Standby Standby control Figure 42 and Figure 4, with a 0.4 V shutdown voltage pin for 9. VCC Cs 1uF TS2007 Vcc Speaker OUT PWM A3 Bridge OUT- Protection Oscillator Circuit Gnd TS2007FC 43). ...

Page 23

... TS2007FC 4.10 Output filter considerations The TS2007 is designed to operate without an output filter. However, due to very sharp transients on the TS2007 output, EMI radiated emissions may cause some standard compliance issues. These EMI standard compliance issues can appear if the distance between the TS2007 outputs and loudspeaker terminal are long (typically more than 50 mm, or 100 mm in both directions) ...

Page 24

... When the temperature decreases to safe levels, the circuit switches back to normal operation. 24/ Ω 15μH / 1.4A 15μH / 1.4A 2μF / 10V 2μF / 10V 1μF / 10V 22Ω / 0.25W LC Output Filter RC network TS2007FC = 8 Ω 30μH / 0.7A 30μH / 0.7A 1μF / 10V 1μF / 10V 1μF / 10V 47Ω / 0.25W ...

Page 25

... TS2007FC 5 Package information In order to meet environmental requirements, STMicroelectronics offers these devices in ® ECOPACK packages. These packages have a lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label ...

Page 26

... Bump height: 250 µm ±40 µm ● Die height: 350 µm ±20 µm ● Pitch: 500 µm ±50 µm ● Back coating layer height*: 40 µm ±10 µm ∅ 0.25mm ∅ 0.25mm ● Coplanarity: 50 µm max 40 µ µ Optional 600 µ m 600 µ m TS2007FC ...

Page 27

... TS2007FC 6 Ordering information Table 13. Order codes Order code TS2007EIJT TS2007EKIJT 7 Revision history Table 14. Document revision history Date 19-Aug-2008 Temperature range -40° +85° C -40° +85° C Revision 1 Initial release. Ordering information Package Marking Flip chip Flip chip with back coating ...

Page 28

... Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America 28/28 Please Read Carefully: © 2008 STMicroelectronics - All rights reserved STMicroelectronics group of companies www.st.com TS2007FC ...

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