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參數(shù)資料
| 型號： | LT1319 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Multiple Modulation Standard Infrared Receiver |
| 中文描述： | 多標準紅外線接收調(diào)制 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 281K |
| 代理商： | LT1319 |
1
LT1319
S
FEATURE
D
The LT
1319 is a general purpose building block that
contains all the circuitry necessary to transform modu-
lated photodiode signals back to digital signals. The
circuit’s flexibility permits it to receive multiple modulation
methods. A low noise, high frequency preamplifier per-
forms a current-to-voltage conversion while rejecting low
frequency ambient interference with an AC coupling loop.
Two separate high impedance filter buffer inputs are
provided so that off-chip filtering can be tailored for
specific modulation schemes. The filter buffers drive sepa-
rate differential gain stages that end in comparators with
internal hysteresis. The comparator thresholds are adjust-
able externally by the current into Pin 11. One channel has
a high speed 25ns comparator required for high data rates.
The second channel’s comparator has a 60ns response
time and is well suited to more modest data rates. A power
saving shutdown feature is useful in portable applications.
For IRDA 4PPM contact the LTC Marketing Department.
U
ESCRIPTIO
Multiple Modulation Standard
Infrared Receiver
I
Receives Multiple IR Modulation Methods
I
Low Noise, High Speed Preamp: 2pA/
√
Hz, 7MHz
I
Low Frequency Ambient Rejection Loops
I
Dual Gain Channels: 8MHz, 400V/V
I
25ns and 60ns Comparators
I
16-Lead SO Package
I
5V Single Supply Operation
I
Supply Current: 14mA
I
Shutdown Supply Current: 500
μ
A
I
External Comparator Threshold Setting
I
IRDA: SIR, FIR
I
Sharp/Newton
I
TV Remote
I
High Data Rate Modulation Methods
ODULATIOU
U
IRDA and Sharp/Newton Data Receiver
TYPICAL APPLICATIO
N
U
AN_GND
IN
FILT1
PREOUT
V
BIAS
FILTINL
FILT2L
FILTIN
LT1319
SHUTDOWN INPUT
IRDA DATA
SHARP/NEWTON DATA
V
CC
R
T1
30k
C
B1
0.1
μ
F
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
C
B3
10
μ
F
C
B2
10
μ
F
C
T1
1
μ
F
C
2.2nF
C
B4
1
μ
F
L
F1
100
μ
H
C
F5
1
μ
F
AGND
LT1319 TA01
DGND
C
10nF
C
F3
100pF
C
F2
1nF
R
F2
2k
R
F1
1k
D1*
BYPASS
V
CC
SHDN
DATAL
DIG_GND
V
TH
DATA
FILT2
*BPW34FA OR BPV22NF
, LTC and LT are registered trademarks of Linear Technology Corporation.
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