max9770euit Maxim Integrated Products, Inc., max9770euit Datasheet - Page 10

• Manufacturer Part Number: max9770euit
• Description: 1.2w Low-emi, Filterless, Mono Class D Amplifier With Stereo Directdrive Headphone Amplifiers
• Manufacturer: Maxim Integrated Products, Inc.

1.2W, Low-EMI, Filterless, Mono Class D Amplifier
with Stereo DirectDrive Headphone Amplifiers
*SV
10
TQFN
SS
EP
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
______________________________________________________________________________________
1
2
3
4
5
6
7
8
9
and CPV
SS
TSSOP
PIN
are internally connected to the same bump on the MAX9772.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
—
4
5
6
7
8
9
1
2
3
D1, D2
UCSP
B5*
B5*
A2
A4
A5
B4
A3
E4
C5
E5
D5
C4
D4
C2
D3
E1
E3
E2
B3
C3
A1
B1
C1
B2
—
—
—
—
HPOUTR
HPOUTL
CPGND
CPV
MONO
NAME
CPV
GAIN2
GAIN1
SHDN
PGND
SYNC
OUT+
SELM
PV
SEL1
SEL2
OUT-
BIAS
SV
GND
IN2R
IN1R
IN2L
IN1L
HPS
C1N
C1P
V
EP
DD
DD
SS
DD
SS
Common-Mode Bias Voltage. Bypass with a 0.047µF capacitor to GND.
Power Supply
Right-Channel Headphone Output
Left-Channel Headphone Output
Headphone Amplifier Negative Power Supply
Headphone Sense Input
Positive Charge-Pump Power Supply
Charge-Pump Output. Connect to SV
Charge-Pump Flying Capacitor Negative Terminal
Charge-Pump Flying Capacitor Positive Terminal
Charge-Pump Ground
Select Stereo Channel 1 Inputs. Digital input. Drive SEL1 high to select inputs
IN1L and IN1R.
Select Stereo Channel 2 Inputs. Digital input. Drive SEL2 high to select inputs
IN2L and IN2R.
Select Mono Channel Input. Digital input. Drive SELM high to select the
MONO input.
Shutdown. Drive SHDN low to disable the device. Connect SHDN to V
normal operation.
Frequency Select and External Clock Input:
SYNC = GND: fixed-frequency PWM mode with f
SYNC = Float: fixed-frequency PWM mode with f
SYNC = V
SYNC = Clocked: fixed-frequency PWM mode with f
frequency.
Speaker Amplifier Power Ground
Speaker Amplifier Positive Output
Speaker Amplifier Negative Output
Speaker Amplifier Power Supply
Gain Control Input 2
Gain Control Input 1
Mono Channel Input
Stereo Channel 2, Left Input
Stereo Channel 1, Left Input
Ground
Stereo Channel 2, Right Input
Stereo Channel 1, Right Input
Exposed Paddle. Can be left floating or tied to GND.
DD
: spread-spectrum PWM mode with f
FUNCTION
SS
.
S
S
S
Pin Description
= 1100kHz.
= 1450kHz.
= 1220kHz ±120kHz.
S
= external clock
DD
for