LM4947TLEVAL National Semiconductor, LM4947TLEVAL Datasheet - Page 9

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LM4947TLEVAL

Manufacturer Part Number
LM4947TLEVAL
Description
BOARD EVALUATION LM4947TL
Manufacturer
National Semiconductor
Series
Boomer®r
Datasheet

Specifications of LM4947TLEVAL

Amplifier Type
Class D
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
Operating Temperature
-40°C ~ 85°C
Board Type
Fully Populated
Utilized Ic / Part
LM4947
Lead Free Status / RoHS Status
Not applicable / Not applicable
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
201735f4
www.national.com
201735f5
µs (max)
(Limits)
ns (min)
ns (min)
ns (min)
ns (min)
V (max)
V (min)
Units
2
C

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