CS5101A
SWITCHING CHARACTERISTICS (T = T
to T
; VA+, VD+ = 5V ± 10%;
A
MIN
MAX
VA-, VD- = -5V ± 10%; Inputs: Logic 0 = 0V, Logic 1 = VD+; C = 50 pF)
L
Parameter
Symbol
Min
Typ
Max
Units
CLKIN Period
(Note 4)
-8
t
t
108
250
-
-
10,000
10,000
ns
ns
clk
-16
clk
CLKIN Low Time
CLKIN High Time
Crystal Frequency
t
37.5
37.5
-
-
-
-
ns
ns
clkl
t
clkh
(Note 13)
-8
-16
f
2.0
2.0
-
-
9.216
4.0
MHz
MHz
xtal
f
xtal
SLEEP Rising to Oscillator Stable
RST Pulse Width
(Note 14)
-
-
2
-
-
-
-
-
ms
ns
ns
t
150
-
rst
RST to STBY Falling
t
-
-
-
-
-
100
drrs
RST Rising to STBY Rising
CH1/2 Edge to TRK1, TRK2 Rising
CH1/2 Edge to TRK1, TRK2 Falling
HOLD to SSH Falling
t
11,528,160
t
clk
cal
(Note 15)
(Note 15)
(Note 16)
(Note 16)
(Note 16)
(Note 17)
(Note 16)
(Note 17)
t
t
t
t
80
ns
drsh1
dfsh4
dfsh2
dfsh1
-
68t +260 ns
clk
60
ns
HOLD to TRK1, TRK2, Falling
HOLD to TRK1, TRK2, SSH Rising
HOLD Pulse Width
66t
-
-
68t +260 ns
clk
clk
t
120
-
63t
64t
ns
ns
ns
ns
drsh
t
t
1t +20
clk
-
-
-
hold
dhlri
clk
clk
HOLD to CH1/2 Edge
15
95
HOLD Falling to CLKIN Falling
t
1tclk+10
hcf
Notes: 13. External loading capacitors are required to allow the crystal to oscillate. Maximum crystal frequency
is 8.0 MHz in FRN mode (100 kHz sample rate).
14. With a 8 MHz crystal, two 10 pF loading capacitors and a 10 MΩ parallel resistor (see Figure 8).
15. These times are for FRN mode.
16. 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 64 t after HOLD has fallen. These times are for PDT and RBT modes.
clk
17. When HOLD goes low, the analog sample is captured immediately. To start conversion, HOLD must
be latched by a falling edge of CLKIN. 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 95 ns after HOLD falls. This
ensures that the HOLD pulse will meet the minimum specification for t
.
hcf
4
DS45F2
CIRRUS [ CIRRUS LOGIC ]
