TPA2000D1
GQC
PW
www.ti.com
SLOS328F–JUNE 2000–REVISED MARCH 2004
2-W FILTERLESS MONO CLASS-D AUDIO POWER AMPLIFIER
FEATURES
PW PACKAGE
•
Modulation Scheme Optimized to Operate
(TOP VIEW)
Without a Filter
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
INP
INN
SHUTDOWN
GAIN0
BYPASS
AGND
COSC
ROSC
V
DD
PV
DD
•
4 mm × 4 mm MicroStar Junior BGA and
TSSOP Package Options
•
•
•
2 W Into a 4-Ω Speaker (THD+N<1%)
<0.2% THD+N at 1.5 W, 1 kHz, Into a 4-Ω Load
GAIN1
PV
DD
Extremely Efficient Third Generation 5-V
Class-D Technology:
OUTP
PGND
OUTN
PGND
– Low-Supply Current (No Filter): 4 mA
– Low-Supply Current (Filter): 7.5 mA
– Low-Shutdown Current: 0.05 µA
MicroStar Juniort (GQC) Package
(TOP VIEW)
INP
AGND BYPASS
– Low-Noise Floor: 40 µVRMS (No-Weighting
Filter)
A2
A6
A1
B1
A7
B7
INN
SHUTDOWN
GAIN0
NC
COSC
ROSC
– Maximum Efficiency Into 8 Ω, 75 - 85 %
– 4 Internal Gain Settings: 6 to 23.5 dB
– PSRR: -77 dB
C1
D1
C7
D7
V
DD
GAIN1
E1
E7
PV
PV
PV
PV
OUTN
DD
DD
DD
F1
F7
DD
•
•
Integrated Depop Circuitry
G1
G7
OUTP
Short-Circuit Protection (Short to Battery,
Ground, and Load)
PGND
(SIDE VIEW)
APPLICATIONS
•
High-Efficiency For Extended Battery Run
Time
NC – No internal connection, still requires a pad for the ball.
NOTE: The shaded terminals are used for thermal
connections to the ground plane.
DESCRIPTION
The TPA2000D1 is a 2-W mono bridge-tied-load (BTL) class-D amplifier designed to drive a speaker with at least
4-Ω impedance. The amplifier uses TI's third generation modulation technique, which results in improved
efficiency and SNR. It also allows the device to be connected directly to the speaker without the use of the LC
output filter commonly associated with class-D amplifiers (this results in EMI that must be shielded at the system
level). These features make the device ideal for use in devices where high efficiency is needed to extend battery
run time.
The gain of the amplifier is controlled by two input terminals, GAIN1 and GAIN0. This allows the amplifier to be
configured for a gain of 6, 12, 18, and 23.5 dB. The differential input terminals are high-impedance CMOS inputs,
and can be used as summing nodes.
The class-D BTL amplifier includes depop circuitry to reduce the amount of turnon pop at power up and when
cycling SHUTDOWN.
The TPA2000D1 is available in the 16-pin TSSOP and MicroStar Junior™ BGA packages that drive 2 W of
continuous output power into a 4-Ω load. TPA2000D1 operates over an ambient temperature range of -40°C to
85°C.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
MicroStar Junior is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2000–2004, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.