U2535B-FP
| Model | U2535B-FP |
| Description | Preamplifier for IR Remote Control |
| PDF file | Total 6 pages (File size: 75K) |
| Chip Manufacturer | TEMIC |
U2535B
Pin Description
A
I
A
O
C
3
O
SW
1
8
Pin
1
IN
Symbol
Function
A
I
Inverting input of bandpass
amplifier, pin connection for
external filter function
A
O
Output of bandpass amplifier
C
3
Capacitor at Pin 3 to reject
(suppress) ripple during trans-
mission, also functions as delay
time for reference voltage of the
comparator
O
SW
Switching output
Open collector output which
switches with time delay and
turns to LOW (transistor
switched ON) when the signal is
identified at Pin 2.
V
S
Supply voltage
The integrated Z-diode (typically
17 V) protects the circuit against
positive voltage spikes
GND Ground
V
S1
Unregulated supply voltage for
5 V operation
IN
Input connection for photodiode
with regulated bias voltage
2
3
2
7
V
S1
GND
4
3
6
4
95 10323
5
V
S
Figure 2. Pinning
5
6
7
8
Absolute Maximum Ratings
Reference point Pin 6, unless otherwise specified
Parameters
Supply-voltage range
Supply currents:
tp
≤
250 ms
Input voltages
Pin 5
Pin 5
Pin 5
Pin 1
Pin 4
Pin 8
Pins 2 and 4
Symbol
V
S
I
S
i
S
V
A(I)
V
0(SW)
V
IN
I
0
T
j
T
stg
T
amb
Value
–0.3 to +16
20
150
–0.3 to 5
–0.3 to 16
–0.3 to 5
±5
125
–40 to +125
–40 to +105
Unit
V
mA
mA
V
V
V
mA
°C
°C
°C
Output currents
Junction temperature
Storage-temperature range
Ambient-temperature range
Thermal Resistance
Parameters
Junction ambient
Symbol
R
thJA
Value
180
Unit
K/W
2 (6)
Rev. A2, 15-Oct-98
Preliminary Information
