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LT1319CS Datasheet

  • LT1319CS

  • Multiple Modulation Standard Infrared Receiver

  • 283.08KB

  • 12頁(yè)

  • LINER

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LT1319
Multiple Modulation Standard
Infrared Receiver
FEATURES
s
s
s
s
s
s
s
s
s
s
DESCRIPTIO
Receives Multiple IR Modulation Methods
Low Noise, High Speed Preamp: 2pA/鈭欻z, 7MHz
Low Frequency Ambient Rejection Loops
Dual Gain Channels: 8MHz, 400V/V
25ns and 60ns Comparators
16-Lead SO Package
5V Single Supply Operation
Supply Current: 14mA
Shutdown Supply Current: 500碌A(chǔ)
External Comparator Threshold Setting
ODULATIO STA DARDS
s
s
s
s
IRDA: SIR, FIR
Sharp/Newton
TV Remote
High Data Rate Modulation Methods
The LT
廬
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鈥檚 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鈥檚 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.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATION
IRDA and Sharp/Newton Data Receiver
SHUTDOWN INPUT
IRDA DATA
SHARP/NEWTON DATA
V
CC
1
2
3
4
5
D1*
R
F2
2k
R
F1
1k
L
F1
100碌H
6
7
8
C
F1
10nF
*BPW34FA OR BPV22NF
C
F3
100pF
C
F2
1nF
C
B4
1碌F
AN_GND
IN
FILT1
PREOUT
V
BIAS
FILTINL
FILT2L
FILTIN
LT1319
BYPASS
V
CC
SHDN
DATAL
DIG_GND
V
TH
DATA
FILT2
16
15
14
13
12
11
10
9
C
F5
1碌F
R
T1
30k
C
F4
2.2nF
U
C
B1
0.1碌F
C
B2
10碌F
C
B3
10碌F
C
T1
1碌F
DGND
AGND
LT1319 鈥?TA01
U
U
U
W
1

LT1319CS 產(chǎn)品屬性

  • 50

  • 集成電路 (IC)

  • 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器

  • -

  • 接收器

  • 0/1

  • 紅外（IRDA）

  • 5V

  • 表面貼裝

  • 16-SOIC（0.154"，3.90mm 寬）

  • 16-SOIC

  • 管件

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