TQ6122 Datasheet, PDF (4/23 Pages) TriQuint Semiconductor – 1 Gigasample/sec, 8-bit Digital-to-Analog Converter

TQ6122
Table 3. AC Characteristics ^(1,2)
Symbol
F_CLK (MAX)
T_RCLK,DATA
T_FCLK,DATA
T_WH
T_WL
T_SETUP
T_HOLD
T_ROUT
T_FOUT
T_SETTLE
Description
Maximum clock frequency
Clock, data input rise time
Clock, data input fall time
Duration of clock HIGH
Duration of clock LOW
Data, control setup time
Data, control hold time
Output rise time
Output fall time
Output settling time
Glitch impulse
Test Conditions
Unmuxed operation
Muxed operation
20% to 80%
20% to 80%
Percentage of clock period
Percentage of clock period
See Figure 7
See Figure 7
10% to 90%
10% to 90%
Within ±0.4% of final value
Min
1000
1000
40
40
Typ
1500
1300
300
300
50
50
300
300
2
Notes: 1. Unless otherwise specified: V_AA = –5V ± 5%, V_SS = –5 V + 10% , V_FS = 1 V p–p, T_CASE = 0 to +85 °C,
V_ECL = –1.3 V, V_IH = –0.8 V, V_IL = –1.8 V
2. Applies to packaged parts only.
Max
Unit
MHz
MHz
ps
ps
60
%
60
%
ps
ps
ps
ps
ns
10
pV/sec
Figure 1. ECL Reference Input Equivalent Circuit
50 Ω
EXTERNAL ECL
REFERENCE
INPUT
I_ECLREF
R_ECLREF,
C_ECLREF
50 Ω
2 pF
50 Ω
-1.3V
(Nominal,
internal)
V_SS
-5 V
SELA
BLANK
A7, B7
ECL INPUT BUFFERS
+
–
–
A0, B0
+
Figure 2. Definition of V_IH, V_IL for Data and BLANK Inputs
V_IH (MAX)
V_IH (MIN)
V_IL (MAX)
V_IH (MIN)
V_IH
V_ECL (-1.3 V NOMINAL)
V_IL
4
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