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IBM31T1100A 데이터시트 PDF




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부품번호 IBM31T1100A 기능
기능 Integrated Infrared Transceiver Module
제조업체 IBM
로고 IBM 로고


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IBM31T1100A 데이터시트, 핀배열, 회로
IBM31T1100A
Integrated Infrared Transceiver Module
Highlights
x IrDA 1.1, HP-SIR and Sharp ASK compliant
x Supports IrDA data rates up to 4 Mbps
x Low profile (height = 5.6 mm max.)
x Minimum external components
x On-chip LED protection circuit
x Low power consumption
x 5 V Supply Voltage
x Complete differential receiver design
x Ambient light and noise rejection circuitry
x Shutdown pin for power management
x Programmable bandwidth control
x Compatible with all major Super I/Os
General Description
The IBM31T1100A is a multi-mode integrated
infrared (IR) transceiver module for data
communication systems. The transceiver supports
IrDA speeds up to 4 Mbps, HP-SIR and Sharp ASK
modes. Integrated into this tiny package is a
photodiode, LED and analog transceiver ASIC to
provide a total solution in a single package. A
current limiting resistor in series with the LED and
a Vcc bypass capacitor are the only external
components required to implement a complete
transceiver.
Package
Vcc
3
Noise
Rejection
Circuit
Amp
+
Comp
-
Driver
SD/BW 6
TX 7
BW
Control SD
logic
Block Diagram
4
GND
Driver
2
RX
Vcc
8
LEDA
1 LEDC




IBM31T1100A pdf, 반도체, 판매, 대치품
IBM31T1100A
AC Electrical Characteristics
q rTA = 0 - 70 C, VCC = 5 V 10 %, unless otherwise specified
Symbol
tR
tF
tS
tH
tPW
tPW
tPW
tPW
tD
tL
tRXEN
tDIS_LED
Parameter
RX Rise Time
RX Fall Time
TX Setup Time to SD/BW Low
TX Hold Time from SD/BW Low
RX Pulse Width
RX Pulse Width
RX Pulse Width
RX Pulse Width
Output Delay @ Ee = 40 mW/cm2
Latency
RX Valid After Shutdown
LEDC Inactive After TX High
Min Typ Max Unit Condition
:10 40 ns RLED = 2.0 K , C = 50 pF
:10 40 ns RLED = 2.0 K , C = 50 pF
200 ns
200 ns
0.8 20 us 9.6 kbps
100 500 ns 1.2 Mbps
60 165 ns 4 Mbps
185 290 ns 4 Mbps double pulse
d1 2 us 1.2 Mbps
120 us
60 us
60 us
Optical Characteristics
q rTA = 0 - 70 C, VCC = 5 V 10%, unless otherwise specified
Symbol
Eemin
Eemin
Eemin
Eemax
Parameter
Minimum Detection Irradiance (SIR mode)
Minimum Detection Irradiance
Minimum Detection Irradiance
Maximum Detection Irradiance
Ie Output Radiant Intensity
D Output Radiant Intensity Half Angle
OP Peak Wavelength
Optical Overshoot
1. Maximum intensity specified for class 1 operation of IEC 825-1
Min Typ Max Unit Condition
0.025 0.035 Wm-2 9.6 - 115 kbps
0.035 0.05
Wm-2 1.2 Mbps
0.07 0.08 Wm-2 4 Mbps
5000
Wm-2 All speeds
:100 140 320 (1) mW/sr Tx = High, SD = Low, RLED = 5.6
VCC=5.0, D=0 q, D=r15 q, TA=25 qC
:0.4 uW/sr Tx=Low or SD=High, RLED=5.6
VCC=5.0, D=0 q, D=r15 q, TA=25 qC
r24 q
880 900 nm
25 %
4

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IBM31T1100A 전자부품, 판매, 대치품
IBM31T1100A
Programming the Receiver Bandwidth
The IBM31T1100A powers on with the upper limit of the receiver
bandwidth set to 1.2 Mbps operation. To set the bandwidth for
operation at 4 Mbps, apply timings as shown in Figure 14 to the
SD/BW and the TX inputs. Note that the internal LED driver is
disabled when SD/BW is active and is not enabled until the next
rising edge of TX. This ensures that the LED(s) will not be active
during bandwidth adjustment. It is recommended that the SD/BW
pin be connected to GND if bandwidth adjustment and shutdown
mode are not used.
To switch the IBM31T1100A from the default state to 4 Mbps and
vice versa, the programming specifications are as follows:
Setting the receiver to 4 Mbps mode
1. Set the SD/BW input to logic high.
t2. Set the TX input to logic high. Wait tS 200 ns.
3. Set the SD/BW to logic low. (This high-to-low transition
latches the state of TX, which determines the receiver
bandwidth.)
t4. After waiting tH 200 ns, set the TX input to logic low. The
receiver is now in high bandwidth mode, the optimal setting
for 4 Mbps operation.
Package Dimensions
5.45 ± 0.5
3.75 ± 0.5
SD/BW
TX
(Setting high bandwidth mode)
TX
(Setting low bandwidth mode)
tS
50%
50%
tH
V IH
50%
V IL
VIH
VIL
VIL
Figure 13. Bandwidth Programming
Setting the receiver to 9.6 kbps-to-1.2 Mbps mode
1. Set the SD/BW input to logic high.
t2. Ensure that the TX input is at logic low. Wait tS 200 ns.
3. Set the SD/BW to logic low. (This high-to-low transition
latches the state of TX, which determines the receiver
bandwidth.)
t4. Ensure that the TX input remains low for tH 200 ns. The
receiver is now in low bandwidth mode, which is the optimal
setting for data rates from 9.6 kbps to 1.2 Mbps.
13 ± 0.5
6.5 ± 0.5
0.5 A
A
0.6 ± 0.2
B
0.275 ± 0.075
2.35 ± 0.3
6.7 ± 0.4
0.5 B
0.9 ± 0.1
0.5 ± 0.1
0.635
(7X) 1.27
(2X) 1.45
Dimensions in mm.
7

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부품번호상세설명 및 기능제조사
IBM31T1100A

Integrated Infrared Transceiver Module

IBM
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