ML6680
AC CHARACTERISTICS
(continued)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
INSERTION KEY ECHO AND BYPASS KEY RECOGNITION (Fig. 1)
T_ECHO
Time since starting insertion
key generation until receiving
the insertion key echo.
Key Echo From T_K1
Key Echo From T_K2
Key Echo From T_K3
766
1533
1533
4
4.5
100
ms
T_E1Key
T_E2Key
T_E3Key
900
1800
µs
µs
µs
ms
T_BYPDET Time of optical input not valid
before recognizing a bypass key
Note 1:
Note 2:
Limits are guaranteed by 100% testing, sampling, or correlation with worst-case test conditions.
Current into all V
CC
pins, external bias resistors, and external transmit loads. Does not include status LED’s current.
GENERATED
INSERTION KEY
T_K1
RECEIVED INSERTION
KEY ECHO
T_ECHO
GENERATED
BYPASS KEY
T_BYP
T_E1
T_E2
T_E1
T_E3
T_K2
T_K1
T_K3
RECEIVED
BYPASS KEY
INSERTED
T_BYPDET
Figure 1
7
MICRO-LINEAR [ MICRO LINEAR CORPORATION ]
