AD6624A
GENERAL TIMING CHARACTERISTICS1, 2
Test
Level
AD6624AS
Typ
Parameter (Conditions)
Temp
Min
Max
Unit
CLK Timing Requirements:
tCLK
CLK Period
Full
Full
Full
I
IV
IV
10
4.5
4.5
ns
ns
ns
tCLKL
tCLKH
CLK Width Low
CLK Width High
0.5 × tCLK
0.5 × tCLK
RESET Timing Requirement:
tRESL RESET Width Low
Full
I
30.0
ns
Input Wideband Data Timing Requirements:
tSI
Input to ↑CLK Setup Time
Full
Full
IV
IV
0.8
2.0
ns
ns
tHI
Input to ↑CLK Hold Time
Level Indicator Output Switching Characteristic:
tDLI
↑CLK to LI (A–A, B; B–A, B) Output Delay Time
Full
IV
3.8
12.6
ns
SYNC Timing Requirements:
tSS
SYNC (A, B, C, D) to ↑CLK Setup Time
SYNC (A, B, C, D) to ↑CLK Hold Time
Full
Full
IV
IV
1.0
2.0
ns
ns
tHS
Serial Port Timing Requirements (SBM = 1):
Switching Characteristics:3
tDSCLK1
tDSCLKH
tDSCLKL
tDSCLKLL
tDSDFS
tDSDFE
tDSDO
↑CLK to ↑SCLK Delay (Divide by 1)
↑CLK to ↑SCLK Delay (For Any Other Divisor)
↑CLK to ↓SCLK Delay (Divide by 2 or Even #)
↓CLK to ↓SCLK Delay (Divide by 3 or Odd #)
↑SCLK to SDFS Delay
Full
Full
Full
Full
Full
Full
Full
Full
Full
IV
IV
IV
IV
IV
IV
IV
IV
IV
3.9
4.4
3.25
3.8
0.2
–0.4
–1.0
–0.3
5.4
13.4
14.0
6.7
6.9
5.3
+4.7
+4.0
+4.6
17.6
ns
ns
ns
ns
ns
ns
ns
ns
ns
↑SCLK to SDFE Delay
↑SCLK to SDO Delay
↑SCLK to DR Delay
tDSDR
tDDR
↑CLK to DR Delay
Input Characteristics:
tSSI
SDI to ↓SCLK Setup Time
Full
Full
IV
IV
2.4
3.0
ns
ns
tHSI
SDI to ↓SCLK Hold Time
Serial Port Timing Requirements (SBM = 0):
Switching Characteristics:3
tSCLK
SCLK Period
Full
Full
Full
Full
Full
Full
IV
IV
IV
IV
IV
IV
16
ns
ns
ns
ns
ns
ns
tSCLKL
tSCLKH
tDSDFE
tDSDO
tDSDR
SCLK Low Time (When SDIV = 1, Divide by 1)
SCLK High Time (When SDIV = 1, Divide by 1)
↑SCLK to SDFE Delay
5.0
5.0
3.8
3.7
3.9
15.4
15.2
15.9
↑SCLK to SDO Delay
↑SCLK to DR Delay
Input Characteristics:
tSSF
tHSF
tSSI
SDFS to ↑SCLK Setup Time
Full
Full
Full
Full
IV
IV
IV
IV
1.9
0.7
2.4
2.0
ns
ns
ns
ns
SDFS to ↑SCLK Hold Time
SDI to ↓SCLK Setup Time
SDI to ↓SCLK Hold Time
tHSI
NOTES
1All Timing Specifications valid over VDD range of 2.375 V to 2.675 V and VDDIO range of 3.0 V to 3.6 V.
2CLOAD = 40 pF on all outputs unless otherwise specified.
3The timing parameters for SCLK, SDFS, SDFE, SDO, SDI, and DR apply to all four channels (0, 1, 2, and 3). The slave serial port’s (SCLK) operating frequency is
limited to 62.5 MHz.
Specifications subject to change without notice.
–4–
REV. 0