AD9520-5
Data Sheet
Rev. A | Page 12 of 76
CLOCK OUTPUT ADDITIVE TIME JITTER (VCO DIVIDER USED)
Table 9.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
LVPECL OUTPUT ADDITIVE TIME JITTER
Distribution section only; does not include PLL;
uses rising edge of clock signal
CLK = 1.0 GHz; VCO DIV = 5; LVPECL = 100 MHz;
Channel Divider = 2; Duty-Cycle Correction = Off
230
fs rms
Calculated from SNR of ADC method
(broadband jitter)
CLK = 500 MHz; VCO DIV = 5; LVPECL = 100 MHz;
Bypass Channel Divider; Duty-Cycle Correction = On
215
fs rms
Calculated from SNR of ADC method
(broadband jitter)
CMOS OUTPUT ADDITIVE TIME JITTER
Distribution section only; does not include PLL;
uses rising edge of clock signal
CLK = 200 MHz; VCO DIV = 2; CMOS = 100 MHz;
Bypass Channel Divider; Duty-Cycle Correction = Off
326
fs rms
Calculated from SNR of ADC method
(broadband jitter)
CLK = 1600 MHz; VCO DIV = 2; CMOS = 100 MHz;
Channel Divider = 8; Duty-Cycle Correction = Off
362
fs rms
Calculated from SNR of ADC method
(broadband jitter)
SERIAL CONTROL PORT—SPI MODE
Table 10.
Parameter
Min
Typ
Max
Test Conditions/Comments
CS (INPUT)
CS has an internal 30 kΩ pull-up resistor
Input Logic 1 Voltage
2.0
V
Input Logic 0 Voltage
0.8
V
Input Logic 1 Current
3
A
Input Logic 0 Current
110
A
The minus sign indicates that current is
the internal pull-up resistor
Input Capacitance
2
pF
SCLK (INPUT) IN SPI MODE
SCLK has an internal 30 kΩ pull-down resistor
in SPI mode, but not in I2C mode
Input Logic 1 Voltage
2.0
V
Input Logic 0 Voltage
0.8
V
Input Logic 1 Current
110
A
Input Logic 0 Current
1
A
Input Capacitance
2
pF
SDIO (INPUT IN BIDIRECTIONAL MODE)
Input Logic 1 Voltage
2.0
V
Input Logic 0 Voltage
0.8
V
Input Logic 1 Current
1
A
Input Logic 0 Current
1
A
Input Capacitance
2
pF
SDIO, SDO (OUTPUTS)
Output Logic 1 Voltage
2.7
V
Output Logic 0 Voltage
0.4
V
TIMING
Clock Rate (SCLK, 1/tSCLK)
25
MHz
Pulse Width High, tHIGH
16
ns
Pulse Width Low, tLOW
16
ns
SDIO to SCLK Setup, tDS
4
ns
SCLK to SDIO Hold, tDH
0
ns
SCLK to Valid SDIO and SDO, tDV
11
ns
CS to SCLK Setup and Hold, tS, tC
2
ns
CS Minimum Pulse Width High, tPWH
3
ns