max9796 Maxim Integrated Products, Inc., max9796 Datasheet - Page 6

• Manufacturer Part Number: max9796
• Description: Max9796 2.3w, High-power Class D Audio Subsystem With Directdrive Headphone Amplifiers
• Manufacturer: Maxim Integrated Products, Inc.

2.3W, High-Power Class D Audio Subsystem
with DirectDrive Headphone Amplifiers
ELECTRICAL CHARACTERISTICS (continued)
(V
0dB, volume setting = 0dB, mono path gain = 0dB, SHDN = 1, SSM = 1). Speaker load resistors (R
OUT+ and OUT-, headphone load resistors are terminated to GND, unless otherwise noted. C1 = C2 = C3 = 1µF. T
unless otherwise noted. Typical values are at T
Note 1: All devices are 100% production tested at room temperature. All temperature limits are guaranteed by design.
Note 2: Measured at headphone outputs.
Note 3: Amplifier inputs AC-coupled to GND.
Note 4: Testing performed with a resistive load in series with an inductor to simulate an actual speaker load. For R
Note 5: Testing performed at room temperature with an 8Ω resistive load in series with 68µH inductive load connected across BTL
6
DIGITAL OUTPUTS (SDA Open Drain)
Output Low Voltage SDA
Output Fall Time SDA
I
Serial-Clock Frequency
Bus Free Time Between STOP
and START Conditions
START Condition Hold
STOP Condition Setup Time
Clock Low Period
Clock High Period
Data Setup Time
Data Hold Time
Maximum Receive SCL/SDA Rise
Time
Maximum Receive SCL/SDA Fall
Time
Setup Time for STOP Condition
Capacitive Load for Each Bus
Line
2
DD
C INTERFACE TIMING
_______________________________________________________________________________________
= PV
R
outputs for speaker amplifier. Testing performed with 32Ω resistive load connected between OUT_ and GND for headphone
amplifier. Testing performed with a 32Ω resistive load connected between OUTRx and GND for mono receiver amplifier.
Mode transitions are controlled by SHDN pin.
L
DD
PARAMETER
= 4Ω L = 47µH.
= CPV
DD
= 3.3V, GND = PGND = CPGND = 0V, SHDN = V
SYMBOL
t
t
t
t
t
HD:STA
SU:DAT
HD:DAT
SU:STO
SU:STA
t
t
t
f
HIGH
V
LOW
t
BUF
SCL
C
OF
t
t
OL
R
F
b
A
= +25°C.) (Note 1)
I
V
to 400pF, I
SINK
H(MIN)
= 6mA
to V
SINK
L(MAX)
CONDITIONS
= 3mA
bus capacitance = 10pF
DD
, I
2
C settings (INA gain = +20dB, INB gain = INC gain =
MIN
100
DC
1.3
0.6
0.6
1.3
0.6
0.6
0
LSP
TYP
250
) are terminated between
L
A
MAX
= 8Ω L = 68µH,
400
900
300
300
400
0.4
= T
MIN
to T
UNITS
kHz
pF
ns
µs
µs
µs
µs
µs
ns
ns
ns
ns
µs
V
MAX
,