TOIM4232-TR3 Vishay, TOIM4232-TR3 Datasheet - Page 16

• Manufacturer Part Number: TOIM4232-TR3
• Description: IC SIR ENDEC IRDA 115.2K 16-SOIC
• Manufacturer: Vishay
• Type: Infrared Encoder/Decoderr

Specifications of TOIM4232-TR3

• Voltage - Supply, Analog: 2.7 V ~ 3.6 V
• Voltage - Supply, Digital: 2.7 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (0.300", 7.5mm Width)
• Data Transmission Rate: 2.4 Kbits/s to 115.2 Kbits/s
• Mounting Style: SMD/SMT
• Operating Voltage: 2.7 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 25 C
• Ic Function: SIR Endec For IrDA Application
• Brief Features: Pulse Shaping Function, Programmable Baud Clock Generator, Low Operating Current
• Supply Voltage Range: 2.7V To 3.6V
• Operating Temperature (min): -25C
• Operating Temperature Classification: Commercial
• Operating Temperature (max): 85C
• Package Type: SOIC
• Rad Hardened: No
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Applications: -
• Lead Free Status / Rohs Status: Compliant
• Other names: 751-1200-2

TOIM4232
Vishay Semiconductors
Additionally, with the programmable output S1 of the endec
the echo suppression feature can be switched on and off for
testing. The default mode is echo-off. To enable the echo, S1
is to be set inactive/low. (See the chapter for programming
the TOIM4232, TOIM5232).
The oscilloscope diagrams are shown in figure 14. Channel
2 shows the echo signal on the RXD output of the TFDU4101
transceiver during transmission (Note: TFDU4300 is an
echo-off design and would not show this).
Channel 1 is the signal used for gating the path from the
transceiver RXD output to the endec. On channel 3 the signal
at the input of the endec is shown with a residual signal.
Finally, the output to the RS232 port, RD_232, is clean
without any noise signal.
www.vishay.com
16
CON9
J1
1
6
2
7
3
8
4
9
5
External input
3.6V max.
RXD
TXD
Vcc
C3
C4
RTS (BR/D)
+
+
DTR (RESET)
CON2
11
10
12
J2
1
3
5
9
1
2
C+
C1-
C2+
C2-
T1IN
T2IN
R1OUT
R2OUT
MAX3232
Fig. 13 - Demo Board Circuit with Echo-Suppression to be Used for Echo-On and Echo-Off Transceivers.
Z1
U1
C1
T1OUT
T2OUT
R1IN
R2IN
VCC
[e-mail], [e-mail],
+ C2
V+
V-
16
2
6
15
14
7
13
8
For technical questions within your region, please contact one of the following:
+
C6
+
R1
C5
+
C7
SIR Endec for IrDA
Z2
C8
Integrated Interface Circuit
Y1
R2
1
2
3
4
5
6
7
8
RESET
BR/D
RD_232
TD_232
Vcc_SD
X1
X2
GND
C9
TOIM4232*)
*) For TOIM5232 pinning, see figure 1.
U2
RD_LED
TD_LED
RD_IR
TD_IR
Vcc
NC
S2
S1
16
15
14
13
12
11
10
9
®
1->
2->
3->
4->
Applications
21037
1) Ch1: TOIM4232; TD_232, pin 4, vertical scale: 2 V/div.,
2) Ch2: TFDU4101; RXD, pin 4 (IR)
3) Ch3: TOIM4232; RD_IR, pin 15
4) Ch4: TOIM4232; RD_232, pin 3
R5
1
5
7
horizontal scale: 20 µs/div.
NC_1
NO_2
INS1
[e-mail]
8
DG2039
V+
U4
COM_1
COM_2
4
INS2
D
Fig. 14 - Echo-Suppression
2
6
3
C10
C11
+
R3
This line not used forTFDU4101
2
4
6
8
TFDU4300
TFDU4101
Cathode
RXD
Vcc1
GND
Pin7: TFDU4101:NC
TFDU4300:Vlog
U3
Document Number: 82546
21047
Anode
TXD
SD
.
1
3
5
7
Rev. 2.1, 17-Nov-10
optional
R4