CS5101A 데이터 시트보기 (PDF) - Cirrus Logic
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CS5101A Datasheet PDF : 39 Pages
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CS5101A CS5102A
SWITCHING CHARACTERISTICS, CS5102A
(TA = TMIN to TMAX; VA+, VD+ = 5V ±10%; VA-, VD- = -5V ±10%; Inputs: Logic 0 = 0V, Logic 1 = VD+; CL = 50 pF).
Parameter
Symbol Min
Typ
Max Unit
CLKIN Period
CLKIN Low Time
CLKIN High Time
Crystal Frequency
SLEEP Rising to Oscillator Stable
(Note 22) tclk
0.5
-
tclkl
200
-
tclkh
200
-
(Note 22, Note 23) fxtal
0.9
1.6
(Note 24)
-
-
20
10
µs
-
ns
-
ns
2.0 MHz
-
ms
RST Pulse Width
trst
150
-
-
ns
RST to STBY falling
tdrrs
-
100
-
ns
RST Rising to STBY Rising
tcal
- 2,882,040
-
tclk
CH1/2 Edge to TRK1, TRK2 Rising
(Note 25) tdrsh1
-
80
-
ns
CH1/2 Edge to TRK1, TRK2 Falling
(Note 25) tdfsh4
-
-
68tclk+260 ns
HOLD to SSH Falling
(Note 26) tdfsh2
-
60
-
ns
HOLD to TRK1, TRK2 Falling
(Note 26) tdfsh1
66tclk
-
68tclk+260 ns
HOLD to TRK1, TRK2, SSH Rising
(Note 26) tdrsh
-
120
-
ns
HOLD Pulse Width
(Note 27) thold 1tclk+20
-
63tclk
ns
HOLD to CH1/2 Edge
(Note 26) tdhlri
15
-
64tclk
ns
HOLD Falling to CLKIN Falling
(Note 27) thcf
55
-
1tclk+10 ns
Notes: 22. Minimum CLKIN period is 0.625 ms in FRN mode (20 kSps).
23. External loading capacitors are required to allow the crystal to oscillate. Maximum crystal frequency is 1.6 MHz in
FRN mode (20 kSps).
24. With a 2.0 MHz crystal, two 33 pF loading capacitors and a 10 MΩ parallel resistor (see Figure 9).
25. These timings are for FRN mode.
26. SSH only works correctly if HOLD falling edge is within +15 to +30 ns of CH1/2 edge or if CH1/2 edge occurs after
HOLD rises to 64tclk after HOLD has fallen. These timings are for PDT and RBT modes.
27. When HOLD goes low, the analog sample is captured immediately. To start conversion, HOLD must be latched
by a falling edge of CLLKIN. Conversion will begin on the next rising edge of CLKIN after HOLD is latched. If HOLD
is operated synchronous to CLKIN, the HOLD pulse width may be as narrow as 150 ns for all CLKIN frequencies
if CLKIN falls 55 ns after HOLD falls. This ensures that the HOLD pulse will meet the minimum specification for thcf.
DS45F6
9
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