LM4947TL/NOPB National Semiconductor, LM4947TL/NOPB Datasheet - Page 9

• Manufacturer Part Number: LM4947TL/NOPB
• Description: IC AUDIO SUBSYSTM 1.19W D 25USMD
• Manufacturer: National Semiconductor
• Series: Boomer®r
• Type: Class Dr

Specifications of LM4947TL/NOPB

• Output Type: 1-Channel (Mono) with Stereo Headphones
• Max Output Power X Channels @ Load: 1.19W x 1 @ 8 Ohm; 87mW x 2 @ 32 Ohm
• Voltage - Supply: 2.7 V ~ 5.5 V
• Features: 3D, Depop, Differential Inputs, I²C, Mute, Shutdown, SPI, Thermal Protection, Volume Control
• Mounting Type: Surface Mount
• Package / Case: 25-MicroSMD
• Amplifier Class: D
• No. Of Channels: 3
• Output Power: 2.5W
• Supply Voltage Range: 2.7V To 5.5V
• Load Impedance: 32ohm
• Operating Temperature Range: -40°C To +85°C
• Amplifier Case Style: SMD
• Rohs Compliant: Yes
• For Use With: LM4947TLEVAL - BOARD EVALUATION LM4947TL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM4947TLTR

t
t
t
t
t
V
V
1
2
3
4
5
Symbol
IH
IL
I
The following specifications apply for V
I
The I
ID_ENB pin. The LM4947's two possible I
are of the form 111110X
2
2
C
C Protocol Information
2
C address for the LM4947 is determined using the
(Notes 2, 7)
Clock Period
Clock Setup Time
Data Hold Time
Start Condition Time
Stop Condition Time
SPI Input Voltage High
SPI Input Voltage Low
Parameter
1
0 (binary), where X
DD
= 5V and 3.3V, T
2
C chip addresses
1
= 0, if ID_ADDR
FIGURE 4. I
FIGURE 3. I
A
Conditions
2
= 25°C unless otherwise specified.
C Timing Diagram
2
C Bus Format
9
is logic LOW; and X
interface is used to address a number of chips in a system,
the LM4947's chip address can be changed to avoid any pos-
sible address conflicts.
(Note 4)
Typical
1
= 1, if ID_ENB is logic HIGH. If the I
LM4947
(Note 5)
0.7xI
0.3xI
Limits
V
V
100
100
100
100
2.5
DD
DD
2
2
C
C
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µs (max)
(Limits)
ns (min)
ns (min)
ns (min)
ns (min)
V (max)
V (min)
Units
2
C