CS8130_94 View Datasheet(PDF) - Cirrus Logic
Part Name
Description
Manufacturer
CS8130_94 Datasheet PDF : 28 Pages
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CS8130
TRANSMITTER DRIVER CHARACTERISTICS (TA = 25 °C; All V+ = 3.0V, Digital Input Levels: Logic 0 = 0V,
Logic 1 = V+; unless otherwise specified)
Parameter
Symbol Min
Typ
Output capacitance
(Note 1)
10
Output rise time (10% to 90%)
tr
-
20
Output fall time (90% to 10%)
tf
-
20
Overshoot over final current
On resistance
-
-
-
-
Off leakage current
-
-
Output current (each driver)
(Note 2)
-
-
Output jitter relative a jitter free input clock
-
-
Notes: 1. Typical LED junction capacitance is 20pF.
2. 50% duty cycle, max pulse width 165 µs (3/16 of (1/1200 bps + 5%)).
Max
TBD
50
50
25
0.5
20
250
200
Units
pF
ns
ns
%
Ω
µA
mA
ns
RECEIVER CHARACTERISTICS (TA = 25 °C; All V+ = 3.0V, Digital Input Levels: Logic 0 = 0V, Logic 1 = V+;
unless otherwise specified)
Parameter
Symbol Min
Typ
Max Units
Input capacitance
(Note 3)
Input noise current
Maximum signal input current from detector
Maximum DC input current (typically sunlight)
Input current detection thresholds
(Programmable with a 5 bit value)
RS4-0=00000:
RS4-0=00001:
(Min, Max = Typical ±30%)
(Note 4)
RS4-0=00010:
↓
RS4-0=11110:
RS4-0=11111:
-
-
-
-
-
-
16.4
↓
169.5
175
10
-
-
-
7.8
15.6
23.4
↓
242.2
250
TBD
11
2
200
-
-
30.4
↓
314.9
325
pF
pA/rtHz
mA
µA
nA
nA
nA
"
nA
nA
Bandpass filter response
High Pass -3dB:
Low Pass -3dB:
-
35
-
kHz
-
700
-
kHz
Receiver power up time
With high (200µA) dc ambient
With normal (2µA) dc ambient
-
5
10
ms
-
0.3
1
ms
Turn-around time, with receiver on continuously (Note 5)
-
5
10
ms
EMI rejection of system (0.5MHz to 100MHz).
(Note 6)
3
-
-
V/m
Notes: 3. Typical PIN diode junction capacitance is 50pF.
4. The ±30% tolerance covers chip-to-chip variation. The temperature coefficient of the receiver
threshold setting is low. Current detection thresholds are above the DC ambient condition.
Settings of RS4-0 of less than 00010 are not practical because of noise.
5. Turn-around time is the time taken for the PIN diode receiver to recover from the IR energy
from the transmitter. The remote end of the link must wait for this time after receiving data
before transmitting a reply. This time may be reduced to <1 ms by good IR shielding from
the transmit LED to the PIN diode.
6. This is a system specification. A metal shield over the PIN diode and CS8130 is
recommended to ensure system compliance.
Specifications are subject to change without notice.
2
DS134PP2
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