Specifications

13
Pattern Generator Specifications and Characteristics
(16821A, 16822A, and 16823A)
Data pod characteristics
Note: Data pod output parametrics depend on the output driver and
the impedance load of the target system. Check the device data
book for the specific drivers listed for each pod.
Agilent 10461A TTL data pod
Output type 10H125 with 100 Ω series
Maximum clock 200 MHz
Skew [1] Typical < 2 ns; worst case = 4 ns
Recommended lead set Agilent 10474A
Agilent 10462A 3-state TTL/CMOS data pod
Output type 74ACT11244 with 100 Ω series;
10H125 on non 3-state channel 7 [2]
3-state enable Negative true, 100 KΩ to GND, enabled
on no connect
Maximum clock 100 MHz
Skew [1] Typical < 4 ns; worst case = 12 ns
Recommended lead set Agilent 10474A
Agilent 10464A ECL data pod (terminated)
Output type 10H115 with 330 Ω pulldown, 47 Ω series
Maximum clock 300 MHz
Skew [1] Typical < 1 ns; worst case = 2 ns
Recommended lead set Agilent 10474A
[1] Typical skew measurements made at pod connector with approximately
10 pF/50 KΩ load to GND; worst case skew numbers are a calculation of worst
case conditions through circuits. Both numbers apply to any channel within the
pattern generator.
[2] Channel 7 on the 3-state pods has been brought out in parallel as a non 3-state
signal. By looping this output back into the 3-state enable line, the channel can be
used as a 3-state enable.
ECL/TTL
100 Ω
10H125
100 Ω
74ACT11244
42 Ω
10H115
– 5.2 V
348 Ω