MCP2122 Microchip Technology, MCP2122 Datasheet - Page 23

• Manufacturer Part Number: MCP2122
• Description: Converts serial data from UART bitstreams to IrDA standard bitstreams (encodes) and from IrDA standard bitstreams to UART bitstreams ...
• Manufacturer: Microchip Technology

FIGURE 4-7:
TABLE 4-7:
 2004 Microchip Technology Inc.
AC Characteristics
Param.
IR121A
IR121B
IR113
IR114
IR120 T
IR122
Bit Value
to TX
16XCLK
20C
20D
21C
No.
Note 1: Data in the Typical (“Typ”) column is at 5V, +25 C, unless otherwise stated. These parameters are for
TXIRI (3 * 16XCLK pulses)
TXIR Time Out
TXIR pin
2: These parameters (shaded) are characterized but are not tested. These values should be used for design
3: This specification is not tested. This value is from the design target
TX
T
Symbol
T
T
T
T
TXIR
design guidance only and are not tested.
guidance only.
T
L2
TXIR
TXIR
TX
TXIR
TX
RF
TXIR
PW TXIR pulse width
J
P
R
F
TX AND TXIR REQUIREMENTS
IR113
IR114
H TX falling edge ( ) to
TX pin rise time and fall time
TX to 16XCLK jitter
TXIR rising edge ( )
TXIR bit period
TXIR pin rise time
TXIR pin fall time
16XCLK AND THE TX AND TXIR WAVEFORMS
IR115
IR121B
Characteristic
IR123
16 CLK
Data bit x
(1)
0
Preliminary
Standard Operating Conditions (unless otherwise specified)
Operating Temperature: –40 C
Operating Voltage V
Section 4.1 “DC Characteristics”.
Smaller of
1.41
Min
IR121A
—
—
—
—
—
—
3
7
IR124
IR121C
6 CLK
Typ
IR122
3.5
—
—
—
—
16
10
10
10
(1)
DD
Smaller of
range is described in
Max
25
25
60
25
—
1
8
3
5
IR113
T
T
T
T
T
Units Conditions
A
XCLK
XCLK
XCLK
XCLK
ns
µs
ns
ns
ns
+125 C (Extended)
MCP2122
Note 2
Note 2
At 115200 baud
At 9600 baud (Note 3)
V
V
Note 2
Data bit x+1
DD
DD
= 1.8V (Note 2)
16 CLK
DS21894B-page 23
2.7V (Note 2)
1