MP7722 MPS, MP7722 Datasheet - Page 3

• Manufacturer Part Number: MP7722
• Description: 2 x 20W Class D Stereo Single Ended Audio Amplifer
• Manufacturer: MPS

OPERATING SPECIFICATIONS
Circuit of Figure 1, V
PIN FUNCTIONS
MP7722 Rev. 1.3
9/25/2006
Parameters
Power Output
THD+ Noise
Efficiency
Maximum Power Bandwidth
Dynamic Range
Noise Floor
Power Supply Rejection
1, 5, 11,
Pin #
16
10
12
13
14
15
2
3
4
6
7
8
9
AGND1 Analog Ground 1. Connect AGND1 to AGND2.
AGND2 Analog Ground 2. Connect AGND2 to AGND1.
PGND2 Power Ground for Amplifier 2. Connect PGND2 to PGND1.
Name
VDD2
REF1
REF2
SW2
EN1
EN2
BS2
IN1
IN2
NC
Description
No Connect. Not internally connected
Amplifier 1 Reference. REF1 is the reference point for amplifier 1. Use a resistive voltage
divider to set the voltage at REF1 to V
Amplifier 1 Input. IN1 is the inverting input for amplifier 1.
Enable Input 1. EN1 must be connected to EN2. Drive EN1 high to enable MP7722; low to
disable it.
Amplifier 2 Input. IN2 is the inverting input for amplifier 2.
Amplifier 2 Reference. REF2 is the reference point for amplifier 2. Use a resistive voltage
divider to set the voltage at REF1 to V
Enable Input 2. EN2 must be connected to EN1. Drive high to enable MP7722, drive low to
disable.
High-Side MOSFET Bootstrap Input for Amplifier 2. A capacitor from BS2 to SW2 supplies
the gate drive current to the internal high-side MOSFET. Connect a 1µF capacitor from
SW2 to BS2.
Power Supply Input. Bypass VDD2 to PGND2 with a 1µF X7R capacitor (in addition to the
main bulk capacitor), placed close to the IC PIN13 and PIN15.
Switched Power Output. SW2 is the output of Amplifier 2. Connect the LC filter to this pin.
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
DD
= 24V, V
MP7722 – 2 x 20W CLASS D STEREO SINGLE ENDED AUDIO AMPLIFIER
Symbol Condition
EN
= 5V, T
© 2006 MPS. All Rights Reserved.
f = 1KHz, THD+N = 10%,
4Ω Load
f = 1KHz, THD+N = 10%,
8Ω Load
P
Load
P
Load
f = 1KHz, P
Load
f = 1KHz, P
Load
A-Weighted
f = 1KHz
www.MonolithicPower.com
OUT
OUT
A
= +25°C, unless otherwise noted.
= 1W, f = 1KHz, 4Ω
= 1W, f = 1KHz, 8Ω
OUT
OUT
= 1W, 4Ω
= 1W, 8Ω
DD
DD
/2.
/2.
Min
0.16
0.06
Typ
190
20
10
90
95
20
93
60
Max
Units
KHz
dB
µV
dB
W
W
%
%
%
%
3