MAX9879 Maxim Integrated Products, MAX9879 Datasheet - Page 5

• Manufacturer Part Number: MAX9879
• Description: Stereo Class D Audio Subsystem
• Manufacturer: Maxim Integrated Products

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ELECTRICAL CHARACTERISTICS (continued)
(V
0dB, BYPASS = 0, SHDN = 1. Speaker loads connected between OUT_+ and OUT_-. Headphone loads connected from HPL or HPR to
GND. R
(Notes 3, 4)
Signal-to-Noise Ratio
Slew Rate
Capacitive Drive
Crosstalk
Charge-Pump Frequency
VOLUME CONTROL
Minimum Setting
Maximum Setting
Input Gain
Mute Attenuation
Zero-Crossing Detection Time
Out
ANALOG SWITCH
On-Resistance
Total Harmonic Distortion + Noise
Off-Isolation
DIGITAL INPUTS (SDA, SCL, SHDN)
Input Voltage High (SDA, SCL)
Input Voltage Low (SDA, SCL)
Input Hysteresis (SDA, SCL)
DD
= V
SPK
PVDDL
PARAMETER
= ∞, R
= V
HP
PVDDR
_______________________________________________________________________________________
= ∞. C1 = C2 = C
= 3.7V, V
with DirectDrive Headphone Amplifier
CCIO
SYMBOL
V
SNR
R
V
= 1.8V, V
SR
V
BIAS
C
HYS
ON
IH
IL
L
Stereo Class D Audio Subsystem
= 1µF. T
A-weighted,
R
HPL to HPR, HPR to HPL, f = 20Hz to 20kHz
_VOL = 1
_VOL = 31
Input A or B
f = 1kHz, _VOL = 0
ZCD = 1
I
RXIN_ = 0 and V
BYPASS = 1
V
V
f = 1kHz, BYPASS = 1 No series resistors
BYPASS = 0, RXIN+ and RXIN- to GND =
50Ω, R
speaker output signal
GND
RXIN__
DIFRXIN
CMRXIN
HP
= 16Ω
A
= V
SPK
= T
= 20mA,
PGNDL
= 2V
= V
MIN
= 8Ω, f = 10kHz, referred to
DD
P-P
to T
CONDITIONS
/2,
ENA = 1 and
ENB = 0 or
ENA = 1 and
ENB = 0
ENA = 1 and
ENB = 1
= V
DD,
,
MAX
PGNDR
, unless otherwise noted. Typical values are at T
PGAIN_ = 00
PGAIN_ = 01
PGAIN_ = 10
Speaker
Headphone
T
T
Series resistance is
10Ω per switch
A
A
= 0. Single-ended inputs, preamp = 0, volume controls =
= +25°C
= T
MIN
ΔIN_ = 0
ΔIN_ = 1
ΔIN_ = 0
ΔIN_ = 1
to T
MAX
V
0.7 x
MIN
CCIO
TYP
0.35
±20
100
350
100
110
200
-75
5.5
2.4
0.3
0.3
98
98
96
96
67
20
60
88
0
0
V
MAX
0.3 x
0.25
CCIO
5.2
4
A
= +25°C.)
UNITS
V/µs
kHz
mV
dB
dB
dB
dB
dB
dB
ms
dB
pF
%
Ω
V
V
5