Target Specification
Preliminary
Electronic Components
KGL4225D
.
14-Gbps 1:16 MUX
1. DESCRIPTION
KGL 4225D converts 16bit parallel data into one data stream operating over 14GHz clock frequency.
The KGL 4225D is fabricated by OKI 0.18
µ
m gate length GaAs MESFETs process. By usin g of OKI unique
flip-flops, which are MCFF (Memory Cell type Flip Flop), high speed operation has been realized. Capacitive
coupling is recommended for clock input connection. The data output level is compatible with SCFL. Low
speed signal interfaces are compatible with ECL. The device is mounted in 48pin package.
2. ABSOLUTE MAXIMUM RATINGS
No.
1
2
3
4
Supply Voltage
Clock and Data Input Voltage
Package Base Temperature under Bias
Storage Temperature
Item
Symbol Min. Max. Unit
VTT
VCDI
Ts
Tst
-2.3
-2.3
-45
-45
0.3
-0.5
100
125
V
V
°
C
°
C
3.
FUNCTIONAL BLOCK DIAGRAM
D0
D2
D4
DE
D1
D3
D5
DF
LCK
LCKN
8:1
MUX
2:1
MUX
Q
QN
8:1
MUX
delay
delay
control pulses
1/16CK
8
1/2CK
1/2CK
1/2CK
controller
1/2
divider
HCK
Figure 1 Block Diagram of KGL4225D
No.
Oki Electric Industry Co.,Ltd.
GTD-18414 rev.1
1
/5
OKI [ OKI ELECTRONIC COMPONETS ]
