参数资料
型号: AD9522-0/PCBZ
厂商: Analog Devices Inc
文件页数: 4/84页
文件大小: 0K
描述: BOARD EVAL FOR AD9522-0 CLK GEN
设计资源: AD9522 Eval Board Schematic
AD9522 BOM
标准包装: 1
主要目的: 计时,时钟发生器
嵌入式:
已用 IC / 零件: AD9522-0
主要属性: 12 LVDS/24 CMOS 输出,2.8 GHz VCO
次要属性: I²C & SPI 接口
已供物品:
AD9522-0
Rev. 0 | Page 12 of 84
CLOCK OUTPUT ADDITIVE TIME JITTER (VCO DIVIDER USED)
Table 12.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
LVDS OUTPUT ADDITIVE TIME JITTER
Distribution section only; does not include
PLL and VCO; uses rising edge of clock signal
CLK = 500 MHz; VCO DIV = 5; LVDS = 100 MHz;
Bypass Channel Divider; Duty-Cycle Correction = On
248
fs rms
Calculated from SNR of ADC method
(broadband jitter)
CMOS OUTPUT ADDITIVE TIME JITTER
Distribution section only; does not include
PLL and VCO; uses rising edge of clock signal
CLK = 200 MHz; VCO DIV = 2; CMOS = 100 MHz;
Bypass Channel Divider; Duty-Cycle Correction = Off
290
fs rms
Calculated from SNR of ADC method
(broadband jitter)
CLK = 200 MHz; VCO DIV = 1; CMOS = 100 MHz;
Bypass Channel Divider; Duty-Cycle Correction = Off
288
fs rms
Calculated from SNR of ADC method
(broadband jitter)
SERIAL CONTROL PORT—SPI MODE
Table 13.
Parameter
Min
Typ
Max
Unit
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
μA
Input Logic 0 Current
110
μA
The minus sign indicates that current is flowing out of
the AD9522, which is due to 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
μA
Input Logic 0 Current
1
μA
Input Capacitance
2
pF
SDIO (WHEN AN INPUT IN BIDIRECTIONAL MODE)
Input Logic 1 Voltage
2.0
V
Input Logic 0 Voltage
0.8
V
Input Logic 1 Current
1
μA
Input Logic 0 Current
1
μA
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
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