Features
TS2007FC
3 W filter-free class-D audio power amplifier
with 6 or 12 dB fixed gain select
■ Operates from V
■ Standby mode active low
■ Output power: 1.4 W at 5 V or 0.5 W at 3.0 V
= 2.4 V to 5.5 V
CC
into 8 Ω with 1% THD+N max.
■ Output power: 2.3 W at 5 V 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
Applications
■ Cellular phones
■ PDAs
■ Notebook PCs
TS2007EIJT - 9-bump flip-chip
Pinout (top view)
OUT-
GS
IN+
GND
VCC
VCC IN-
OUT+
STBY
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
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.
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. The pop and click reduction circuitry provides
low on/off switching noise and allows the device to
start within 1 ms typically.
May 2011 Doc ID 14937 Rev 2 1/28
www.st.com
28
Contents TS2007FC
Contents
1 Absolute maximum ratings and operating conditions . . . . . . . . . . . . . 3
2 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1 Electrical characteristics tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2 Electrical characteristic curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.1 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
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
wu
5 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
2/28 Doc ID 14937 Rev 2
TS2007FC Absolute maximum ratings and operating conditions
1 Absolute maximum ratings and operating conditions
Table 1. Absolute maximum ratings (AMR)
Symbol Parameter Value Unit
(2)
(1)
(6)
(5)
(7)
(3)
6V
GND to V
CC
V
200 °C/W
(4)
2kV
200 V
V
T
T
R
V
oper
T
P
Supply voltage
CC
Input voltage
in
Operating free-air temperature range -40 to + 85 °C
Storage temperature -65 to +150 °C
stg
Maximum junction temperature 150 °C
j
Thermal resistance junction to ambient
thja
Power dissipation Internally limited
d
Human body model
ESD
Machine model
Latch-up Latch-up immunity Class A = 200 mA
Lead temperature (soldering, 10 sec) 260 °C
Output short circuit protection
R
1. All voltage values are measured with respect to the ground pin.
2. The magnitude of input signal must never exceed VCC + 0.3 V / GND - 0.3 V
3. The device is protected in case of over temperature by a thermal shutdown active @ 150° C.
4. Exceeding the power derating curves during a long period provokes abnormal operating conditions.
5. Human body model: 100 pF discharged through a 1.5 kΩ resistor between two pins of the device, done for
all couples of pin combinations with other pins floating.
6. 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 Ω), done for all couples of pin
combinations with other pins floating.
7. Implemented short-circuit protection protects the amplifier against damage by short-circuit between
positive and negative outputs and between outputs and ground.
Minimum load resistor 3.2 Ω
L
Doc ID 14937 Rev 2 3/28
Absolute maximum ratings and operating conditions TS2007FC
Table 2. Operating conditions
Symbol Parameter Value Unit
V
V
V
V
STBY
V
R
R
1. |Voo| ≤ 35 mV max with both differential gains.
2. Without any signal on V
3. Minimum current consumption is obtained when V
4. Without any signal on GS pin, the device is in a 6 dB gain configuration (internal 300 kΩ pull up resistor).
5. With mounted on 4-layer PCB.
Supply voltage 2.4 to 5.5 V
CC
Input voltage range GND to V
in
Input common mode voltage range
icm
Standby voltage input:
(2)
(1)
Device ON
Device OFF
Gain select input voltage:
GS
Gain = 6 dB
(4)
Gain = 12 dB
Load resistor ≥ 4 Ω
L
STBY
(5)
= GND.
Thermal resistance junction to ambient
thja
, the device is in standby (internal 300 kΩ pull down resistor).
STBY
GND + 0.15 V to
- 0.7 V
V
CC
1.4 ≤ V
GND ≤ V
STBY
STBY
1.4 ≤ VGS ≤ VCC
GND ≤ VGS ≤ 0.4
90 °C/W
CC
≤ VCC
≤ 0.4
(3)
V
V
V
V
4/28 Doc ID 14937 Rev 2
TS2007FC Application information
2 Application information
Table 3. External component description
Components Functional description
C
s
Supply capacitor that provides power supply filtering.
Input coupling capacitors (optional) that block the DC voltage at the amplifier input
C
in
terminal. These capacitors also form a high-pass filter with
Zin (Fc = 1 / (2 x π x Zin x Cin)).
See
Table 4. Pin description
Pin name Pin description
IN+ Positive differential input
VCC Power supply
IN- Negative differential input
GS Gain select input
STDBY Standby pin (active low)
GND Ground
OUT+ Positive differential output
OUT- Negative differential output
Figure 1. Typical application
Gain select control
VCC
Cs
1uF
Differential
Input
Input capacit ors
are optional
In-
Ci n
C1
A1
Ci n
In+
Standby control
IN-
IN+
A2
GS
Gain
Select
Standby
Con tr ol
-
+
Oscil lator
StandbyGnd
C2
Note: See Section 4.10: Output filter considerations on page 23.
Doc ID 14937 Rev 2 5/28
B2
Vcc
PWM
B3
TS2007FC
H
Bridge
Protection
Ci rcuit
OUT+
OUT-
Speaker
C3
A3
Electrical characteristics TS2007FC
3 Electrical characteristics
3.1 Electrical characteristics tables
Table 5. VCC = +5 V, GND = 0 V, Vic = 2.5 V, T
= 25°C (unless otherwise specified)
amb
Symbol Parameter Min. Typ. Max. Unit
I
CC
I
CC-STBY
V
oo
Supply current. No input signal, no load 2.5 4 mA
Standby current
(1)
. No input signal, V
= GND. 1 2 µA
STBY
Output offset voltage. Floating inputs, RL = 8 Ω 25 mV
Output power
2.3
1.4
3
1.75
0.12 %
P
o
THD + N
THD = 1% max, F = 1 kHz, RL = 4 Ω
THD = 1% max, F = 1 kHz, R
= 8 Ω
L
THD = 10% max, F = 1 kHz, RL = 4 Ω
THD = 10% max, F = 1 kHz, RL = 8 Ω
Total harmonic distortion + noise
= 900 mW
P
o
, G = 6 dB, F= 1 kHz, RL = 8 Ω
RMS
Efficiency
Efficiency
PSRR
CMRR
Gain
Z
in
F
PWM
SNR
t
WU
t
STBY
Po = 2.3 W
Po = 1.4 W
, RL = 4 Ω (with LC output filter)
rms
, RL = 8 Ω (with LC output filter)
rms
Power supply rejection ratio with inputs grounded, C
F= 217 Hz, RL = 8 Ω, Gain = 6 dB, V
F= 217 Hz, RL = 8 Ω, Gain = 12 dB, V
Common mode rejection ratio C
=1 µF, RL = 8 Ω
in
20 Hz < F< 20 kHz, Gain = 6 dB, ΔV
ripple
ripple
= 200 mV
ICM
= 200 mV
= 200 mV
pp
Gain value, Gs = 0 V
Gain value, GS = V
Single ended input impedance
CC
(3)
= 1 µF
IN
pp
pp
(2)
11.5
86
92
68
65
60 dB
12612.5
5.5
6.5
68 75 82 kΩ
Pulse width modulator base frequency 190 280 370 kHz
Signal-to-noise ratio (A-weighting), F = 1 kHz, Po = 1.9 W
G = 6 dB, R
= 4 Ω (with LC output filter)
L
93 dB
Wake-up time 1 3 ms
Standby time 1 ms
Output voltage noise, F = 20 Hz to 20 kHz, RL = 4 Ω
Unweighted (filterless, G = 6 dB)
A-weighted (filterless, G = 6 dB)
Unweighted (with LC output filter, G = 6 dB)
V
N
A-weighted (with LC output filter, G = 6 dB)
Unweighted (filterless, G = 12 dB)
A-weighted (filterless, G = 12 dB)
Unweighted (with LC output filter, G = 12 dB)
A-weighted (with LC output filter, G = 12 dB)
1. Standby mode is active when V
2. Dynamic measurement - 20*log(rms(V
3. Independent of gain configuration (6 or 12 dB) and between IN+ or IN- and GND.
is tied to GND.
STBY
out
)/rms(V
ripple
)). V
is the superimposed sinus signal to VCC @ F =217 Hz.
ripple
87
60
83
58
106
77
101
75
µV
W
%
dB
dB
rms
6/28 Doc ID 14937 Rev 2
TS2007FC Electrical characteristics
Table 6. VCC = +4.2 V, GND = 0 V, Vic = 2.1 V, T
= 25°C (unless otherwise specified)
amb
Symbol Parameter Min. Typ. Max. Unit
I
CC
I
CC-STBY
V
oo
Supply current
No input signal, no load
Standby current
No input signal, V
(1)
STBY
Output offset voltage
Floating inputs, R
= 8 Ω
L
= GND
23.3mA
0.85 2 µA
25 mV
Output power
1.6
0.95
2
1.2
0.09 %
P
o
THD + N
THD = 1% max, F = 1 kHz, R
= 4 Ω
L
THD = 1% max, F = 1 kHz, RL = 8 Ω
THD = 10% max, F = 1 kHz, R
L
THD = 10% max, F = 1 kHz, RL = 8 Ω
Total harmonic distortion + noise
Po = 600 mW
, G = 6 dB, F = 1 kHz, RL = 8 Ω
rms
= 4 Ω
Efficiency
Efficiency
PSRR
CMRR
= 1.6 W
P
o
Po = 0.95 W
Power supply rejection ratio with inputs grounded,
= 1 µF
C
in
F = 217 Hz, RL = 8 Ω, Gain = 6 dB, V
F = 217 Hz, RL = 8 Ω, Gain = 12 dB, V
200 mV
Common mode rejection ratio C
20 Hz < F< 20 kHz, Gain = 6 dB, ΔV
, RL = 4 Ω (with LC output filter)
rms
, RL = 8 Ω (with LC output filter)
rms
(2)
pp
in
= 200 mV
ripple
=
ripple
= 1 µF, RL = 8 Ω,
= 200 mV
ICM
pp
pp
86
92
68
65
60 dB
Gain value
Gain
Z
F
PWM
SNR
t
WU
t
STBY
IN
Gs = 0 V
= V
G
S
CC
Single ended input impedance
(3)
Pulse width modulator base frequency 190 280 370 kHz
Signal-to-noise ratio (A-weighting), F=1 kHz, Po = 1.3 W
G = 6 dB, R
= 4 Ω (with LC output filter)
L
Wake-up time 1 3 ms
Standby time 1 ms
11.5
5.5
12
12.5
6
6.5
68 75 82 kΩ
92 dB
Output voltage noise, F = 20 Hz to 20 kHz, RL = 4 Ω
Unweighted (filterless, G = 6 dB)
A-weighted (filterless, G = 6 dB)
Unweighted (with LC output filter, G = 6 dB)
V
N
A-weighted (with LC output filter, G = 6 dB)
Unweighted (filterless, G = 12 dB)
A-weighted (filterless, G = 12 dB)
Unweighted (with LC output filter, G = 12 dB)
A-weighted (with LC output filter, G = 12 dB)
1. Standby mode is active when V
2. Dynamic measurements - 20*log(rms(V
3. Independent of Gain configuration (6 or 12 dB) and between IN+ or IN- and GND.
is tied to GND.
STBY
out
)/rms(V
ripple
)). V
is the superimposed sinus signal to VCC @ F = 217 Hz.
ripple
86
59
82
57
105
74
100
74
µV
W
%
dB
dB
rms
Doc ID 14937 Rev 2 7/28
Electrical characteristics TS2007FC
Table 7. VCC = +3.6 V, GND = 0 V, Vic = 1.8 V, T
= 25°C (unless otherwise specified)
amb
Symbol Parameter Min. Typ. Max. Unit
I
CC
I
CC-STBY
V
oo
Supply current
No input signal, no load
Standby current
No input signal, V
(1)
STBY
Output offset voltage
Floating inputs, R
= 8 Ω
L
= GND
1.7 3.1 mA
0.75 2 µA
25 mV
Output power
1.2
0.7
1.55
0.9
0.06 %
P
o
THD + N
THD = 1% max, F = 1 kHz, R
= 4 Ω
L
THD = 1% max, F = 1 kHz, RL = 8 Ω
THD = 10% max, F = 1 kHz, R
L
THD = 10% max, F = 1 kHz, RL = 8 Ω
Total harmonic distortion + noise
Po = 400 mW
, G = 6 dB, F = 1 kHz, RL = 8 Ω
rms
= 4 Ω
Efficiency
Efficiency
PSRR
CMRR
= 1.18 W
P
o
Po = 0.7 W
Power supply rejection ratio with inputs grounded,
= 1 µF
C
in
F = 217 Hz, RL = 8 Ω, Gain = 6 dB, V
F = 217 Hz, RL = 8 Ω, Gain = 12 dB, V
200 mV
Common mode rejection ratio C
20 Hz < F< 20 kHz, Gain = 6 dB, ΔV
, RL = 4 Ω (with LC output filter)
rms
, RL = 8 Ω (with LC output filter)
rms
(2)
pp
in
= 200 mV
ripple
=
ripple
= 1 µF, RL = 8 Ω,
= 200 mV
ICM
86
92
pp
68
65
pp
60 dB
Gain value
Gain
Z
F
PWM
SNR
t
WU
t
STBY
in
Gs = 0 V
= V
G
S
CC
Single ended input impedance
(3)
Pulse width modulator base frequency 190 280 370 kHz
Signal-to-noise ratio (A-weighting), F=1 kHz, Po = 0.9 W
G = 6 dB, R
= 4 Ω (with LC output filter)
L
Wake-up time 1 3 ms
Standby time 1 ms
11.5
5.5
12
12.5
6
6.5
68 75 82 kΩ
90 dB
Output voltage noise, F = 20 Hz to 20 kHz, RL = 4 Ω
Unweighted (filterless, G = 6 dB)
A-weighted (filterless, G = 6 dB)
Unweighted (with LC output filter, G = 6 dB)
V
N
A-weighted (with LC output filter, G = 6 dB)
Unweighted (filterless, G = 12 dB)
A-weighted (filterless, G = 12 dB)
Unweighted (with LC output filter, G = 12 dB)
A-weighted (with LC output filter, G = 12 dB)
1. Standby mode is active when V
2. Dynamic measurements - 20*log(rms(V
3. Independent of gain configuration (6 or 12 dB) and between IN+ or IN- and GND.
is tied to GND.
STBY
out
)/rms(V
ripple
)). V
is the superimposed sinus signal to VCC @ F= 217 Hz.
ripple
84
58
79
56
104
75
99
72
μV
W
%
dB
dB
RMS
8/28 Doc ID 14937 Rev 2
TS2007FC Electrical characteristics
Table 8. VCC = +3.0 V, GND = 0 V, Vic = 1.5 V, T
= 25°C (unless otherwise specified)
amb
Symbol Parameter Min. Typ. Max. Unit
I
CC
I
CC-STBY
V
oo
Supply current
No input signal, no load
Standby current
No input signal, V
(1)
STBY
Output offset voltage
Floating inputs, R
= 8 Ω
L
= GND
1.5 2.9 mA
0.6 2 µA
25 mV
Output power
0.75
0.5
1
0.6
0.04 %
P
o
THD + N
THD = 1% max, F = 1 kHz, R
= 4 Ω
L
THD = 1% max, F = 1 kHz, RL = 8 Ω
THD = 10% max, F = 1 kHz, R
L
THD = 10% max, F = 1 kHz, RL = 8 Ω
Total harmonic distortion + noise
Po = 300 mW
, G = 6 dB, F= 1 kHz, RL = 8 Ω
RMS
= 4 Ω
Efficiency
Efficiency
PSRR
CMRR
= 0.8 W
P
o
Po = 0.5 W
Power supply rejection ratio with inputs grounded,
= 1 µF
C
in
F = 217 Hz, RL = 8 Ω, Gain = 6 dB, V
F = 217 Hz, RL = 8 Ω, Gain = 12 dB, V
200 mV
Common mode rejection ratio C
20 Hz < F< 20 kHz, Gain = 6 dB, ΔV
, RL = 4 Ω (with LC output filter)
rms
, RL = 8 Ω (with LC output filter)
rms
(2)
pp
in
= 200 mV
ripple
=
ripple
= 1 µF, RL = 8 Ω,
= 200 mV
ICM
85
91
pp
68
65
pp
60 dB
Gain value
Gain
Z
F
PWM
SNR
t
WU
t
STBY
in
Gs = 0 V
= V
G
S
CC
Single ended input impedance
(3)
Pulse width modulator base frequency 190 280 370 kHz
Signal-to-noise ratio (A-weighting), F=1 kHz, Po = 0.6 W
G = 6 dB, R
= 4 Ω (with LC output filter)
L
Wake-up time 1 3 ms
Standby time 1 ms
11.5
5.5
12
12.5
6
6.5
68 75 82 kΩ
89 dB
Output voltage noise, F = 20 Hz to 20 kHz, RL = 4 Ω
Unweighted (filterless, G = 6 dB)
A-weighted (filterless, G = 6 dB)
Unweighted (with LC output filter, G = 6 dB)
V
N
A-weighted (with LC output filter, G = 6 dB)
Unweighted (filterless, G = 12 dB)
A-weighted (filterless, G = 12 dB)
Unweighted (with LC output filter, G = 12 dB)
A-weighted (with LC output filter, G = 12 dB)
1. Standby mode is active when V
2. Dynamic measurements - 20*log(rms(V
3. Independent of Gain configuration (6 or 12 dB) and between IN+ or IN- and GND.
is tied to GND.
STBY
out
)/rms(V
ripple
)). V
is the superimposed sinus signal to VCC @ F = 217 Hz.
ripple
82
57
78
55
103
74
99
71
µV
W
%
dB
dB
RMS
Doc ID 14937 Rev 2 9/28
Electrical characteristics TS2007FC
Table 9. VCC = +2.7 V, GND = 0 V, Vic = 1.35 V, T
= 25°C (unless otherwise specified)
amb
Symbol Parameter Min. Typ. Max. Unit
I
CC
I
CC-STBY
V
oo
Supply current
No input signal, no load
Standby current
No input signal, V
(1)
STBY
= GND
Output offset voltage
Floating inputs, RL = 8 Ω
1.45 2.5 mA
0.5 2 µA
25 mV
Output power
0.64
0.39
0.83
0.49
0.03 %
P
o
THD + N
THD = 1% max, F = 1 kHz, RL = 4 Ω
THD = 1% max, F = 1 kHz, R
= 8 Ω
L
THD = 10% max, F = 1 kHz, RL = 4 Ω
THD = 10% max, F = 1 kHz, RL = 8 Ω
Total harmonic distortion + noise
= 250 mW
P
o
, G = 6 dB, F = 1 kHz, RL = 8 Ω
rms
Efficiency
Efficiency
PSRR
CMRR
= 0.64 W
P
o
Po = 0.39 W
Power supply rejection ratio with inputs grounded,
= 1 µF
C
in
F= 217 Hz, RL = 8 Ω, Gain = 6 dB, V
F= 217 Hz, RL = 8 Ω, Gain = 12 dB, V
Common mode rejection ratio C
20 Hz < F< 20 kHz, Gain = 6 dB, ΔV
, RL = 4 Ω (with LC output filter)
rms
, RL = 8 Ω (with LC output filter)
rms
(2)
in
= 200 mV
ripple
= 200 mV
ripple
=1µF, RL = 8 Ω,
= 200 mV
ICM
84
91
pp
pp
pp
68
65
60 dB
Gain value
Gain
Z
F
PWM
SNR
t
WU
t
STBY
in
Gs = 0 V
= V
G
S
CC
Single ended input impedance
(3)
11.5
5.5
12
12.5
6
6.5
68 75 82 kΩ
Pulse width modulator base frequency 190 280 370 kHz
Signal-to-noise ratio (A-weighting), F=1 kHz, Po = 0.5 W
G = 6 dB, R
= 4 Ω (with LC output filter)
L
88 dB
Wake-up time 1 3 ms
Standby time 1 ms
Output voltage noise, F = 20 Hz to 20 kHz, RL = 4 Ω
Unweighted (filterless, G = 6 dB)
A-weighted (filterless, G = 6 dB)
Unweighted (with LC output filter, G = 6 dB)
V
N
A-weighted (with LC output filter, G = 6 dB)
Unweighted (filterless, G = 12 dB)
A-weighted (filterless, G = 12 dB)
Unweighted (with LC output filter, G = 12 dB)
A-weighted (with LC output filter, G = 12 dB)
1. Standby mode is active when V
2. Dynamic measurements - 20*log(rms(Vout)/rms(V
3. Independent of Gain configuration (6 or 12 dB) and between IN+ or IN- and GND.
is tied to GND.
STBY
ripple
)). V
is the superimposed sinus signal to VCC @ F= 217 Hz.
ripple
82
56
77
55
100
73
98
70
µV
W
%
dB
dB
RMS
10/28 Doc ID 14937 Rev 2
TS2007FC Electrical characteristics
3.2 Electrical characteristic curves
The graphs shown in this section use the following abbreviations:
● R
● Filter = LC output filter (1 µF+ 30 µH for 4 Ω and 0.5 µF+15 µH for 8 Ω)
+ 15 µH or 30 µH = pure resistor + very low series resistance inductor
L
All measurements are done with C
PSRR where C
is removed (Figure 3).
S1
= 1 µF and C
S1
S2
Figure 2. Test diagram for measurements
Cin
Cin
VCC
GND
In+
TS2007F C
In-
GND
Cs1
1 µF
Out+
Out-
Cs2
100 nF
GND
15 µH or 30 µH
or
LC Filter
Audio Measurement
Bandwith < 30 kHz
Figure 3. Test diagram for PSRR measurements
= 100 nF (Figure 2), except for the
RL
4 or 8
Ω
5th order
50 kHz
low-pass filter
1 µF
Cin
Cin
1 µF
GND
5th order
50 kHz
low-pass filter
Cs2
VCC
GND
In+
TS2007FC
In-
GND
reference
100 nF
Out+
Out-
20 Hz to 20 kHz
Vri pple
15 µH or 30 µH
LC Filt er
RMS Selective Measurement
Bandwith =1% of Fmeas
Vcc
GND
or
RL
4 or 8
Ω
5th order
50 kHz
low-pass filter
Doc ID 14937 Rev 2 11/28
Electrical characteristics TS2007FC
For quick reference, a list of the graphs shown in this section is provided in Ta bl e 1 0 .
Table 10. Index of graphs
Description Figure
Current consumption vs. power supply voltage Figure 4
Standby current vs. power supply voltage Figure 5
Current consumption vs. standby voltage Figure 6
Efficiency vs. output power Figure 7 to Figure 12
Output power vs. power supply voltage Figure 13, Figure 14
THD+N vs. output power Figure 15 to Figure 18
THD+N vs. frequency Figure 19 to Figure 28
PSRR vs. frequency Figure 29
PSRR vs. common mode input voltage Figure 30, Figure 31
CMRR vs. frequency Figure 32
CMRR vs. common mode input voltage Figure 33, Figure 34
Gain vs. frequency Figure 35, Figure 36
Output offset vs. common mode input voltage Figure 37 to Figure 39
Power derating curves Figure 40
Startup and shutdown phase Figure 41 to Figure 43
12/28 Doc ID 14937 Rev 2
TS2007FC Electrical characteristics
Figure 4. Current consumption vs. power
supply voltage
3.5
No load
T
= 25°C
AMB
3.0
2.5
2.0
1.5
1.0
Current Consumption (mA)
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=5V
2
1
Current Consumption (mA)
0
012345
Vcc=2.7V
Standby Voltage (V)
Vcc=4.2V
Vcc=3V
Vcc=3.6V
No load
T
= 25°C
AMB
Figure 5. Standby current vs. power supply
voltage
1.4
No load
Vstdby = GND
1.2
Tamb = 25°C
1.0
A)
μ
0.8
0.6
0.4
Standby Current (
0.2
0.0
2.5 3.0 3.5 4.0 4.5 5.0 5.5
Power Supply Voltage (V)
Figure 7. Efficiency vs. output power
100
80
60
40
Efficiency (%)
20
0
0.00.51.01.52.02.53.0
Efficiency
Power
Dissipation
Output Power (W)
Vcc = 5V
F = 1kHz
RL = 4Ω + ≥ 15μH
THD+N ≤ 10%
BW ≤ 30kHz
T
= 25°C
AMB
0.6
0.5
0.4
0.3
0.2
0.1
0.0
Power Dissipation (W)
Figure 8. Efficiency vs. output power Figure 9. Efficiency vs. output power
100
80
60
40
Efficiency (%)
20
0
Efficiency
Power
Dissipation
0.0 0.5 1.0 1.5 2 .0
Output Power (W)
Vcc = 5V
F = 1kHz
RL = 8Ω + ≥ 15μH
THD+N ≤ 10%
BW ≤ 30kHz
T
= 25°C
AMB
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
Doc ID 14937 Rev 2 13/28
100
80
60
40
Efficiency (%)
Power Dissipation (W)
20
0
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
Efficiency
Power
Dissipation
Output Power (W)
Vcc = 3.6V
F = 1kHz
RL = 4Ω + ≥ 15μH
THD+N ≤ 10%
BW ≤ 30kHz
T
AMB
= 25°C
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
Power Dissipation (W)
Electrical characteristics TS2007FC
Efficiency
(%)
Figure 10. Efficiency vs. output power Figure 11. Efficiency vs. output power
100
80
60
40
Efficiency (%)
20
0
Efficiency
Power
Dissipation
0.0 0.2 0.4 0.6 0.8 1.0
Output Power (W)
Vcc = 3.6V
F = 1kHz
RL = 8Ω + ≥ 15μH
THD+N ≤ 10%
BW ≤ 30kHz
T
= 25°C
AMB
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0.00
100
80
60
40
Efficiency (%)
Power Dissipation (W)
20
0
0.0 0.1 0.2 0.3 0 .4 0.5 0 .6 0.7 0.8 0.9
Efficiency
Power
Dissipation
Output Power (W)
Vcc = 2.7V
F = 1kHz
RL = 4Ω + ≥ 15μH
THD+N ≤ 10%
BW ≤ 30kHz
T
AMB
= 25°C
Figure 12. Efficiency vs. output power Figure 13. Output power vs. power supply
voltage
100
80
60
40
20
0
0.00.10.20.30.40.5
Efficiency
Power
Dissipation
Output Power (W)
Vcc = 2.7V
F = 1kHz
RL = 8Ω + ≥ 15μH
THD+N ≤ 10%
BW ≤ 30kHz
T
= 25°C
AMB
0.050
0.045
0.040
0.035
0.030
0.025
0.020
0.015
0.010
0.005
0.000
3.0
F = 1kHz
BW < 30kHz
2.5
T
= 25°C
AMB
RL=4Ω+≥15μH
2.0
1.5
1.0
0.5
RL=8Ω+≥15μH
Output power at 1% THD + N (W)
0.0
2.5 3.0 3.5 4.0 4.5 5.0 5.5
Power supply voltage (V)
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
Power Dissipation (W)
Figure 14. Output power vs. power supply
Figure 15. THD+N vs. output power
voltage
F = 1kHz
3.5
BW < 30kHz
T
AMB
= 25°C
RL=4Ω+≥15μH
3.0
2.5
2.0
1.5
1.0
RL=8Ω+≥15μH
0.5
Output power at 10% THD + N (W)
0.0
2.53.03.54.04.55.05.5
Power supply voltage (V)
14/28 Doc ID 14937 Rev 2
10
1
THD + N (%)
0.1
0.01
0.01 0.1 1
RL = 4Ω + 15μH
F = 100Hz
G = +6dB
BW < 30kHz
T
= 25°C
AMB
Vcc=5V
Vcc=4.2V
Vcc=3.6V
Vcc=3V
Vcc=2.7V
Output power (W)
TS2007FC Electrical characteristics
Figure 16. THD+N vs. output power Figure 17. THD+N vs. output power
10
RL = 8Ω + 15μH
Vcc=5V
F = 100Hz
G = +6dB
BW < 30kHz
T
1
AMB
= 25°C
Vcc=4.2V
Vcc=3.6V
Vcc=3V
Vcc=2.7V
THD + N (%)
0.1
0.01
0.01 0.1 1
Output power (W)
10
RL = 4Ω + 15μH
F = 1kHz
G = +6dB
BW < 30kHz
T
= 25°C
1
AMB
Vcc=4.2V
Vcc=3.6V
Vcc=3V
Vcc=2.7V
THD + N (%)
0.1
0.01
0.01 0.1 1
Output power (W)
Vcc=5V
Figure 18. THD+N vs. output power Figure 19. THD+N vs. frequency
10
RL = 8Ω + 15μH
F = 1kHz
G = +6dB
BW < 30kHz
Tamb = 25°C
1
Vcc=4.2V
Vcc=3.6V
Vcc=3V
Vcc=2.7V
10
Vcc = 5V
RL = 4Ω + 15μH
G = +6dB
BW < 30kHz
T
= 25°C
1
AMB
Po=1400mW
THD + N (%)
0.1
THD + N (%)
0.1
Po=700mW
Vcc=5V
0.01
0.01 0.1 1
Output power (W)
0.01
100 1000 10000
Frequency (Hz)
Figure 20. THD+N vs. frequency Figure 21. THD+N vs. frequency
THD + N (%)
10
1
0.1
0.01
Vcc = 5V
RL = 8Ω + 15μH
G = +6dB
BW < 30kHz
T
= 25°C
AMB
100 1000 10000
Po=900mW
Po=450mW
Frequency (Hz)
THD + N (%)
10
1
0.1
0.01
Vcc = 4.2V
RL = 4Ω + 15μH
G = +6dB
BW < 30kHz
T
= 25°C
AMB
100 1000 10000
Po=1000mW
Po=500mW
Frequency (Hz)
Doc ID 14937 Rev 2 15/28
Electrical characteristics TS2007FC
Figure 22. THD+N vs. frequency Figure 23. THD+N vs. frequency
THD + N (%)
10
1
0.1
0.01
Vcc = 4.2V
RL = 8Ω + 15μH
G = +6dB
BW < 30kHz
T
= 25°C
AMB
100 1000 10000
Po=600mW
Po=300mW
Frequency (Hz)
THD + N (%)
10
1
0.1
0.01
Vcc = 3.6V
RL = 4Ω + 15μH
G = +6dB
BW < 30kHz
T
= 25°C
AMB
100 1000 10000
Po=700mW
Po=350mW
Frequency (Hz)
Figure 24. THD+N vs. frequency Figure 25. THD+N vs. frequency
10
Vcc = 3.6V
RL = 8Ω + 15μH
G = +6dB
BW < 30kHz
T
= 25°C
1
AMB
Po=400mW
10
Vcc = 3V
RL = 4Ω + 15μH
G = +6dB
BW < 30kHz
T
= 25°C
1
AMB
Po=500mW
THD + N (%)
0.1
0.01
Po=200mW
100 1000 10000
Frequency (Hz)
THD + N (%)
0.1
0.01
Po=250mW
100 1000 10000
Frequency (Hz)
Figure 26. THD+N vs. frequency Figure 27. THD+N vs. frequency
THD + N (%)
10
1
0.1
0.01
Vcc = 3V
RL = 8Ω + 15μH
G = +6dB
BW < 30kHz
T
= 25°C
AMB
100 1000 10000
Po=300mW
Po=150mW
Frequency (Hz)
THD + N (%)
10
1
0.1
0.01
Vcc = 2.7V
RL = 4Ω + 15μH
G = +6dB
BW < 30kHz
T
= 25°C
AMB
100 1000 10000
Po=400mW
Po=200mW
Frequency (Hz)
16/28 Doc ID 14937 Rev 2
TS2007FC Electrical characteristics
Figure 28. THD+N vs. frequency Figure 29. PSRR vs. frequency
10
Vcc = 2.7V
RL = 8Ω + 15μH
G = +6dB
BW < 30kHz
T
AMB
1
= 25°C
Po=250mW
Po=125mW
THD + N (%)
0.1
0.01
100 1000 10000
Frequency (Hz)
Figure 30. PSRR vs. common mode input
voltage
0
Vripple = 200mVpp
-10
G = +6dB
F = 217Hz
-20
RL = ≥ 4Ω + ≥ 15μH
T
-30
-40
-50
PSRR (dB)
-60
-70
-80
-90
= 25°C
AMB
Vcc=3V
Vcc=4.2V
Vcc=2.7V
Vcc=3.6V
Vcc=5V
012345
Comm on Mode Input Voltage (V)
0
Inputs grounded
-10
Vcc = 5V, 4.2V, 3.6V, 3V, 2.7V
Vripple = 200mVpp
-20
CIN = 1μF
RL = ≥ 4Ω + ≥ 15μH
-30
T
= 25°C
AMB
-40
-50
PSRR (dB)
G=+6dB
G=+12dB
-60
-70
-80
100 1000 10000
Frequency (Hz)
Figure 31. PSRR vs. common mode input
voltage
0
Vripple = 200mVpp
-10
G = +12dB
F = 217Hz
-20
RL = ≥ 4Ω + ≥ 15μH
T
-30
-40
-50
PSRR (dB)
-60
-70
-80
-90
= 25°C
AMB
Vcc=2.7V
Vcc=3.6V
Vcc=4.2V
012345
Common Mode Input Voltage (V)
Vcc=3V
Vcc=5V
Figure 32. CMRR vs. frequency Figure 33. CMRR vs. common mode input
voltage
0
Δ
Vicm = 200mVpp
G = +6dB, +12dB
-10
Cin = 4.7μF
RL = ≥ 4Ω + ≥ 15μH
-20
Tamb = 25°C
-30
-40
-50
CMRR (dB)
-60
-70
-80
Vcc=5V, 4.2V, 3.6V, 3V, 2.7V
100 1000 10000
Frequency (dB)
Doc ID 14937 Rev 2 17/28
0
Δ
Vic = 200mVpp
-10
G = +6dB
F = 217Hz
-20
RL = ≥ 4Ω + ≥15μH
T
= 25°C
AMB
-30
-40
-50
CMRR (dB)
Vcc=3V
Vcc=2.7V
Vcc=4.2V
Vcc=5V
-60
-70
-80
012345
Common Mode Input Voltage (V)
Vcc=3.6V
Electrical characteristics TS2007FC
Figure 34. CMRR vs. common mode input
Figure 35. Gain vs. frequency
voltage
0
Δ
Vic = 200mVpp
G = +12dB
-10
F = 217Hz
-20
RL = ≥ 4Ω + ≥ 15μH
T
= 25°C
AMB
-30
-40
-50
CMRR (dB)
-60
-70
-80
012345
Vcc=3V
Vcc=2.7V
Vcc=4.2V
Comm on Mode Input Voltage (V)
Vcc=3.6V
Vcc=5V
8
7
6
5
4
3
Gain (dB)
2
Set Gain = +6dB
1
Vin = 500mVpp
T
AMB
0
No load
RL=8Ω+15μH
RL=8Ω+30μH
RL=4Ω+30μH
RL=4Ω+15μH
= 25°C
100 1000 10000
Frequency (Hz)
Figure 36. Gain vs. frequency Figure 37. Output offset vs. common mode
input voltage
14
13
12
11
10
9
Gain (dB)
8
Set Gain = +12dB
7
Vin = 500mVpp
T
AMB
6
No load
RL=8Ω+15μH
RL=8Ω+30μH
RL=4Ω+30μH
RL=4Ω+15μH
= 25°C
100 1000 10000
Frequency (Hz)
10
1
0.1
|Voo| (mV)
0.01
1E-3
G=+12dB
0.0 0.5 1.0 1.5 2.0 2 .5 3.0 3.5 4.0 4.5 5.0
Common Mode Input Voltage (V)
G=+6dB
Vcc = 5V
RL = 8Ω + 15μH
T
= 25°C
AMB
Figure 38. Output offset vs. common mode
Figure 39. Output offset vs. common mode
input voltage
10
1
0.1
|Voo| (mV)
0.01
1E-3
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
G=+12dB
Common Mode Input Voltage (V)
G=+6dB
Vcc = 3.6V
RL = 8Ω + 15μH
T
= 25°C
AMB
18/28 Doc ID 14937 Rev 2
10
1
0.1
|Voo| (mV)
0.01
1E-3
0.0 0.5 1.0 1.5 2.0 2.5
input voltage
G=+12dB
Common Mode Input Voltage (V)
G=+6dB
Vcc = 2.7V
RL = 8Ω + 15μH
T
= 25°C
AMB
TS2007FC Electrical characteristics
Figure 40. Power derating curves Figure 41. Startup and shutdown phase
V
=5 V, G=6 dB, Cin=1 μF, i npu ts
CC
grounded
1.6
1.4
1.2
1.0
0.8
0.6
0.4
No Heat sink
0.2
AMR value
Flip-Chip Package Power Dissipation (W)
0.0
0 255075100125150
Ambiant Temperature (°C)
Mounted on a 4-layer PCB
Figure 42. Startup and shutdown phase
V
=5 V, G=6 dB, Cin=1 μF,
CC
V
=1 Vpp, F=10 kHz
in
Vo1
Figure 43. Startup and shutdown phase
Vo1
Vo2
Standby
Vo1 - Vo2
Vo1
=5 V, G=12 dB, Cin=1 μF,
V
CC
V
=1 Vpp, F=10 kHz
in
Vo2
Standby
Vo1 - Vo2
Vo2
Standby
Vo1 - Vo2
Doc ID 14937 Rev 2 19/28
Application information TS2007FC
4 Application information
4.1 Differential configuration principle
The TS2007FC is a monolithic fully-differential input/output class-D power amplifier. The
TS2007FC includes a common-mode feedback loop that controls the output bias value to
average it at V
to always have a maximum output voltage swing, and by consequence, maximize the output
power. In addition, as the load is connected differentially compared to a single-ended
topology, the output is four times higher for the same power supply voltage.
A fully-differential amplifier has the following advantages:
● High PSRR (power supply rejection ratio)
● High CMRR (common mode noise rejection
● Virtually zero pop without additional circuitry, giving a faster startup time than
conventional single-ended input amplifier
● Easy interfacing with differential output audio DAC
● No input coupling capacitors required since there is a common mode feedback loop
/2 in the range of DC common mode input voltage. This allows the device
CC
4.2 Gain settings
In the flat region of the frequency-response curve (no input coupling capacitor or internal
feedback loop + load effect), the differential gain can be set to either 6 or 12 dB depending
on the logic level of the GS pin.
Table 11. GS pin gains
GS pin Gain (dB) Gain (V/V)
16dB2
012dB4
Note: Between the GS pin and VCC there is an internal 300 kΩ resistor. When the pin is floating
the gain is 6 dB. In standby mode, this internal resistor is disconnected (HiZ input).
4.3 Common mode feedback loop limitations
As explained previously, the common mode feedback loop allows the output DC bias voltage
to be averaged at V
Due to the V
limitation of the input stage (see Table 2: Operating conditions), the common
icm
mode feedback loop can fulfill its role only within the defined range.
/2 for any DC common mode bias input voltage.
CC
4.4 Low frequency response
If a low frequency bandwidth limitation is required, it is possible to use input coupling
capacitors. In the low frequency region, the input coupling capacitor C
C
and the input impedance Zin form a first-order high-pass filter with a -3 dB cutoff
in
frequency (see Ta bl e 5 to Ta bl e 9 ).
20/28 Doc ID 14937 Rev 2
has a greater effect.
in
TS2007FC Application information
1
------------------------------------=
F
CL
⋅⋅ ⋅
2 π Z
inCin
So, for a desired cutoff frequency F
with F
The input impedance Z
in Hz, Zin in Ω and Cin in F.
CL
is for the whole power supply voltage range, typically 75 kΩ. There
in
is also a tolerance around the typical value (see Ta bl e 5 to Ta bl e 9 ). With regard to the
tolerance, you can also calculate tolerance of the F
●
F
CLmax
F
●
CLmin
1.103 FCL⋅=
0.915 FCL⋅=
4.5 Circuit decoupling
A power supply capacitor, referred to as CS, is needed to correctly bypass the TS2007FC.
The TS2007FC has a typical switching frequency of 280 kHz and output fall and rise time of
less than or equal to 5 ns. Due to these very fast transients, careful decoupling is
mandatory.
A 1 µF ceramic capacitor is enough, but it must be located very close to the TS2007FC in
order to avoid any extra parasitic inductance created by a long track wire. Parasitic loop
inductance, in relation with di/dt, introduces overvoltage that decreases the global efficiency
of the device and may cause, if this parasitic inductance is too high, a TS2007FC
breakdown. For filtering low frequency noise signals on the power line, it is recommended to
use a capacitor C
In addition, even if a ceramic capacitor has an adequate high frequency ESR (equivalent
series resistance) value, its current capability is also important. A 0603 size is a good
compromise, particularly when a 4 Ω load is used.
of at least 1 µF.
S
we can calculate Cin:
CL
------------------------------------- -=
⋅⋅ ⋅
2 π Z
1
inFCL
CL
C
in
:
Another important parameter is the rated voltage of the capacitor. A 1 µF/6.3 V capacitor
used at 5 V, loses about 50% of its value: with a power supply voltage of 5 V, the decoupling
value, instead of 1 µF, could be reduced to 0.5 µF. As C
has particular influence on the
S
THD+N in the medium to high frequency region, this capacitor variation becomes decisive.
In addition, less decoupling means higher overshoots which can be problematic if they reach
the power supply AMR value (6 V).
4.6 Wake-up time (twu)
When the standby is released to set the device ON, there is a wait of 1 ms typically. The
TS2007FC has an internal digital delay that mutes the outputs and releases them after this
time in order to avoid any pop noise.
Note: The gain increases smoothly (see Figure 42 and Figure 43) from the mute to the gain
selected by the GS pin (Section 4.2).
Doc ID 14937 Rev 2 21/28
Application information TS2007FC
4.7 Shutdown time
When the standby command is set to high, the time required to put the two output stages
into high impedance and to put the internal circuitry in shutdown mode, is typically 1 ms.
This time is used to decrease the gain and avoid any pop noise during shutdown.
Note: The gain decreases smoothly until the outputs are muted (see Figure 42 and Figure 43).
4.8 Consumption in shutdown mode
Between the shutdown pin and GND there is an internal 300 kΩ resistor. This resistor forces
the TS2007FC to be in shutdown when the shutdown input is left floating.
However, this resistor also introduces additional shutdown power consumption if the
shutdown pin voltage does not equal 0 V. This extra current is provided by the device that
drives the standby pin of the amplifier.
Referring to Table 2: Operating conditions on page 4, with a 0.4 V shutdown voltage pin for
example, you must add 0.4 V/300 k = 1.3 µA in typical (0.4 V/273 k = 1.46 µA maximum) to
the shutdown current specified in Ta bl e 5 to Ta bl e 9 .
4.9 Single-ended input configuration
It is possible to use the TS2007FC in a single-ended input configuration. However, input
coupling capacitors are needed in this configuration. The following schematic diagram
shows a typical single-ended input application.
Figure 44. Typical application for single-ended input configuration
Gain select cont rol
A2C2
Input
Ci n
Ci n
C1
A1
IN-
IN+
GS
Gain
Select
Standby
Con tr ol
-
+
StandbyGnd
VCC
B2B3
Vcc
PWM
Osci llator
Cs
1uF
TS2007FC
H
Bridge
Protection
Ci rcuit
OUT+
OUT-
C3
Speaker
A3
Standby control
22/28 Doc ID 14937 Rev 2
TS2007FC Application information
4.10 Output filter considerations
The TS2007FC is designed to operate without an output filter. However, due to very sharp
transients on the TS2007FC output, EMI radiated emissions may cause some standard
compliance issues.
These EMI standard compliance issues can appear if the distance between the TS2007FC
outputs and loudspeaker terminal are long (typically more than 50 mm, or 100 mm in both
directions). As the PCB layout and internal equipment device are different for each
configuration, it is difficult to provide a one-size-fits-all solution.
However, to decrease the probability of EMI issues, there are several simple rules to follow:
● Reduce, as much as possible, the distance between the TS2007FC output pins and the
speaker terminals
● Use a ground plane for shielding sensitive wires
● Place, as close as possible to the TS2007FC and in series with each output, a ferrite
bead with a rated current of minimum 2.5 A and impedance greater than 50 Ω at
frequencies above 30 MHz
● Allow extra footprint to place, if necessary, a capacitor to short perturbations to ground
(Figure 45)
Figure 45. Ferrite chip bead placement
From TS2007FC output
Ferrite chip bead
to speaker
about 100pF
gnd
In the case where the distance between the TS2007FC output and the speaker terminals is
too long, it is possible to have low frequency EMI issues due to the fact that the typical
operating PWM frequency is 280 kHz and fall and rise time of the output signal is less than
or equal to 5 ns. In this configuration, it is necessary to use the output filter represented in
Figure 46 on page 24, that consists of L1, C1, L2 and C2 as close as possible to the
TS2007FC outputs.
When an output filter is used and there exists a possibility to disconnect a load, it is
recommended to use an RC network that consists of C3 and R as shown in Figure 46 on
page 24. In this case, when the output filter is connected without any load, the filter acts like
a short-circuit for input frequencies above 10 kHz. The RC network corrects frequency
response of the output filter and compensates this limitation.
Doc ID 14937 Rev 2 23/28
Application information TS2007FC
Table 12. Example of component choice
Component RL = 4 Ω RL = 8 Ω
L1 15 μH / 1.4 A 30 μH / 0.7 A
L2 15 μH / 1.4 A 30 μH / 0.7 A
C1 2 μF / 10 V 1 μF / 10 V
C2 2 μF / 10 V 1 μF / 10 V
C3 1 μF / 10 V 1 μF / 10 V
R22 Ω / 0.25 W 47 Ω / 0.25 W
Figure 46. LC output filter with RC network
LC Output Filter
OUT+
from TS2007FC
OUT-
4.11 Short-circuit protection
The TS2007FC includes an output short-circuit protection. This protection prevents the
device from being damaged if there are fault conditions on the amplifier outputs.
When a channel is in operating mode and a short-circuit occurs directly between two
outputs (Out+ and Out-) or between an output and ground (Out+ and GND or Out- and
GND), the short-circuit protection detects this situation and puts the amplifier into standby.
To put the amplifier back into operating mode, put the standby pin to logical LO and then to
logical HI.
L1
L2
C1
C2
RC network
C3
R
R
L
4.12 Thermal shutdown
The TS2007FC device has an internal thermal shutdown protection in the event of extreme
temperatures to protect the device from overheating. Thermal shutdown is active when the
device reaches 150°C. When the temperature decreases to safe levels, the circuit switches
back to normal operation.
24/28 Doc ID 14937 Rev 2
TS2007FC Package information
5 Package information
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK
®
packages, depending on their level of environmental compliance. ECOPACK®
®
is an ST trademark.
Figure 47. 9-bump flip-chip pinout (top view)
OUT-
3
3
2
2
1
1
OUT-
GS
GS
IN+
IN+
A
A
Balls are underneath
GND
GND
VCC
VCC
VCC IN-
VCC IN-
B
B
OUT+
OUT+
STBY
STBY
C
C
Figure 48. Marking (top view)
E
E
● Logo: ST
● First two digits for part number: K7
● Third digit for assembly plant: X
K7 X
K7 X
YWW
YWW
● Three digit date code: YWW
● Dot indicates pin A1
● E symbol for lead free
Doc ID 14937 Rev 2 25/28
Package information TS2007FC
m
m
Figure 49. 9-bump flip-chip package mechanical data
1.57 mm
1.57 mm
● Die size: 1.57 mm x 1.57 mm ±30 µm
● Die height (including bumps): 600 µm
● Bump diameter: 315 µm ±50 µm
1.57 mm
0.5mm
0.5mm
0.5mm
0.5mm
∅ 0.25mm
∅ 0.25mm
1.57 mm
600µm
600µm
● Bump diameter before reflow: 300 µm ±10 µm
● 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
● Coplanarity: 50 µm max
40µ
40µ
* Optional
26/28 Doc ID 14937 Rev 2
TS2007FC Ordering information
6 Ordering information
Table 13. Order codes
Order code Temperature range Package Marking
TS2007EIJT -40° C to +85° C Flip-chip K7
TS2007EKIJT -40° C to +85° C Flip-chip with back coating K7
7 Revision history
Table 14. Document revision history
Date Revision Changes
19-Aug-2008 1 Initial release.
17-May-2011 2
Added minimum R
Updated ECOPACK
Minor textual updates
to Table 1: Absolute maximum ratings (AMR)
L
®
paragraph in Section 5: Package information
Doc ID 14937 Rev 2 27/28
TS2007FC
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