LM4947TL National Semiconductor, LM4947TL Datasheet - Page 9

• Manufacturer Part Number: LM4947TL
• Manufacturer: National Semiconductor

Specifications of LM4947TL

• Operational Class: Class-D
• Audio Amplifier Output Configuration: 1-Channel Mono/2-Channel Stereo
• Audio Amplifier Function: Headphone/Speaker
• Single Supply Voltage (typ): Not RequiredV
• Dual Supply Voltage (typ): 3/5V
• Power Supply Requirement: Triple
• Rail/rail I/o Type: No
• Power Supply Rejection Ratio: 76dB
• Single Supply Voltage (min): Not RequiredV
• Single Supply Voltage (max): Not RequiredV
• Dual Supply Voltage (min): 2.2/2.7V
• Dual Supply Voltage (max): 5.5V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 25
• Package Type: uSMD
• Lead Free Status / Rohs Status: Not Compliant

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