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參數(shù)資料
| 型號： | LT1328 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Octal D-Type Transparent Latches With 3-State Outputs 20-SOIC 0 to 70 |
| 中文描述： | 4Mbps的IrDA紅外接收器 |
| 文件頁數(shù)： | 8/12頁 |
| 文件大?。?/td> | 274K |
| 代理商： | LT1328 |
8
LT1328
APPLICATIO
S I
N
FOR
ATIO
U
There is one drawback to the previous scheme. Lowering
the highpass frequency to 14Hz negates the normally
excellent ambient light rejection of the LT1328 to line-
operated light sources. By modulating the data in a very
simple and inexpensive way the ambient light rejection
can be maintained. The NRZ data is used to gate a 3MHz
square wave before driving the transmitter. The LT1328 in
FIR-4ppm mode (bandwidth of 1MHz to 4MHz) will re-
ceive the 3MHz signal. Thus, the low frequency response
is no longer required and the LT1328 can be configured as
W
U
a FIR receiver with no changes. Note that when in FIR/
4ppm mode, the LT1328 has excellent rejection to active-
ballast fluorescent lights (40kHz to 100kHz) as well as line
operated bulbs. The data is recovered with two stages of
retriggerable one-shots on the output of the LT1328. The
first one-shot pulse length is set to 80ns and acts as an
edge detector and the second one-shot pulse length is set
to 2.3
μ
s, just under a symbol period. With this modula-
tion, the range can be extended to over 30" and still have
a bit error rate lower than 1 in 10
8
.
Wireless Slave for Photographic Flash
1
2
3
4
8
7
6
5
LT1328
NC
NC
NC
D2
1N4148
Q1
MPS2907A
R2
1k
5V
TO HOT SHOE
OF SLAVE FLASH
R3
10k
C2
4.7
μ
F
R5
1k
R4
10k
Q2
MPSA42
1328 TA05
D3
MUR
160524
C5
0.1
μ
F
C4
330pF
D1
HAMAMATSU
S4797-01
LIGHT FROM
MASTER FLASH
R1
100
TYPICAL APPLICATIO
S
N
U
Figure 6. Simple Data Link with Improved Low Frequency Noise Rejection
5V
>30"
R1
100
R2
10k
3MHz
R3
3.9
1/2W
Q3
2N7002
74LS00
2
1
3
BIT ERROR RATE
TRANSMITTER/RECEIVER
1328 F06
D2
HSDL 4220
OUT
IN
375bps NRZ DATA
1
2
3
15
NC
14
13
C7
10pF
1/2
74LS123
9
7
5V
6
5
10
11
R5
46.4k
1%
R4
5k
1%
C8
100pF
1/2
74LS123
1
2
3
4
8
7
6
5
C6
1000pF
LT1328
C4
100pF
C2
4.7
μ
F
5V
D1
TEMIC
BPV22NF
C5
4.7
μ
F
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| LT1328CMS8 | 功能描述:IC RECEIVER 4MBPS IRDA IR 8-MSOP RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:27 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):3/3 規(guī)程:RS232，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC 包裝:管件 |
| LT1328CMS8#PBF | 功能描述:IC RECEIVER 4MBPS IRDA IR 8-MSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:27 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):3/3 規(guī)程:RS232，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC 包裝:管件 |
| LT1328CMS8#TR | 功能描述:IC RECEIVER IR 4MBPS IRDA 8MSOP RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:27 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):3/3 規(guī)程:RS232，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC 包裝:管件 |
| LT1328CMS8#TRPBF | 功能描述:IC RECEIVER 4MBPS IRDA IR 8-MSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:27 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):3/3 規(guī)程:RS232，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC 包裝:管件 |
| LT1328CS8 | 功能描述:IC RECEIVER 4MBPS IRDA IR 8-SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:27 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):3/3 規(guī)程:RS232，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC 包裝:管件 |
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