參數(shù)資料
型號(hào): AD9548/PCBZ
廠商: Analog Devices Inc
文件頁(yè)數(shù): 24/112頁(yè)
文件大?。?/td> 0K
描述: BOARD EVAL FOR AD9548
產(chǎn)品變化通告: AD9548 Mask Change 20/Oct/2010
設(shè)計(jì)資源: AD9548 Schematic
AD9548 BOM
AD9548 Eval Brd Layers
標(biāo)準(zhǔn)包裝: 1
主要目的: 計(jì)時(shí),時(shí)鐘發(fā)生器
嵌入式:
已用 IC / 零件: AD9548
主要屬性: 62.5 ~ 450 MHz 輸出頻率
次要屬性: SPI 和 I2C 兼容控制端口
已供物品:
Data Sheet
AD9548
Rev. E | Page 19 of 112
–160
–150
–140
–130
–120
–110
–100
–90
–80
–70
100
1k
10k
100k
1M
10M
100M
PH
A
SE
N
O
ISE
(d
B
c
/H
z)
FREQUENCY OFFSET (Hz)
INTEGRATED RMS JITTER (PHASE NOISE):
5kHz TO 20MHz: 361fs (–69.0dBc)
20kHz TO 80MHz: 441fs (–67.3dBc) (EXTRAPOLATED)
08022-
069
Figure 7. Additive Phase Noise (Output Driver = LVPECL),
fR = 19.44 MHz, fO = 155.52 MHz,
LBW = 1 kHz, fSYS = 50 MHz, PLL On
–160
–150
–140
–130
–120
–110
–100
–90
–80
–70
10
100
1k
10k
100k
1M
10M
100M
PH
A
SE
N
O
ISE
(d
B
c
/H
z)
FREQUENCY OFFSET (Hz)
INTEGRATED RMS JITTER (PHASE NOISE):
5kHz TO 10MHz: 717fs (–65.1dBc)
12kHz TO 20MHz: 725fs (–65.0dBc)
20kHz TO 80MHz: 790fs (–64.3dBc)
08022-
044
Figure 8. Additive Phase Noise (Output Driver = LVPECL),
fR = 1 Hz, fO = 122.88 MHz,
LBW = 0.05 Hz, fSYS = 20 MHz (OCXO), PLL On
100
1k
10k
100k
1M
10M
100M
PH
A
SE
N
O
ISE
(d
B
c
/H
z)
FREQUENCY OFFSET (Hz)
–160
–150
–140
–130
–120
–110
–100
–90
–80
–70
INTEGRATED RMS JITTER (PHASE NOISE):
5kHz TO 20MHz: 336fs (–69.7dBc)
20kHz TO 80MHz: 425fs (–67.6dBc) (EXTRAPOLATED)
08022-
052
Figure 9. Additive Phase Noise (Output Driver = LVPECL),
fR = 8 kHz, fO = 155.52 MHz,
LBW = 100 Hz, fSYS = 50 MHz (Crystal), PLL On
–160
–150
–140
–130
–120
–110
–100
–90
–80
–70
100
1k
10k
100k
1M
10M
100M
PH
A
SE
N
O
ISE
(d
B
c
/H
z)
FREQUENCY (Hz)
ROHDE & SCHWARZ
SMA100 (1GHz)
ROHDE & SCHWARZ
SMA100 (50MHz)
50MHz CRYSTAL
08022-
058
Figure 10. Additive Phase Noise Comparison of SYSCLK Input Options
(Output Driver = LVPECL),
fR = 19.44 MHz, fO = 311.04 MHz, LBW = 1 kHz
–160
–150
–140
–130
–120
–110
–100
–90
–80
–70
100
1k
10k
100k
1M
10M
100M
PH
A
SE
N
O
ISE
(d
B
c
/H
z)
FREQUENCY OFFSET (Hz)
INTEGRATED RMS JITTER (PHASE NOISE):
5kHz TO 20MHz: 356fs (–69.2dBc)
20kHz TO 80MHz: 435fs (–67.4dBc) (EXTRAPOLATED)
08022-
054
Figure 11. Additive Phase Noise (Output Driver = LVPECL),
fR = 1 Hz, fO = 155.52 MHz,
LBW = 0.05 Hz, fSYS = 50 MHz, PLL On
–160
–150
–140
–130
–120
–110
–100
–90
–80
–70
100
1k
10k
100k
1M
10M
100M
PH
A
SE
N
O
ISE
(d
B
c
/H
z)
FREQUENCY OFFSET (Hz)
INTEGRATED RMS JITTER (PHASE NOISE):
5kHz TO 20MHz: 245fs (–72.4dBc)
20kHz TO 80MHz: 300fs (–64.3dBc) (EXTRAPOLATED)
08022-
051
Figure 12. Additive Phase Noise (Output Driver = LVPECL) ,
fR = 19.44 MHz, fO = 155.52 MHz,
LBW = 1 kHz, fSYS = 50 MHz (Crystal), PLL On with
2x Frequency Multiplier, ICP = 375 μA, LF = External (350 kHz)
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