AD9575 Ver la hoja de datos (PDF) - Analog Devices
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AD9575 Datasheet PDF : 16 Pages
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AD9575
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
GNDA 1
16 SEL0
VDDA 2
15 GND
VDDX 3
XO1 4
XO2 5
AD9575
TOP VIEW
(Not to Scale)
14 LVDS/LVPECL OUT
13 LVDS/LVPECL OUT
12 VDD
GNDX 6
11 VDD_CMOS
GNDA 7
10 CMOS OUT/SEL1
VDDA 8
9 GND_CMOS
Figure 4. Pin Configuration
Table 11. Pin Function Descriptions
Pin No.
Mnemonic
1, 7
GNDA
2, 8
VDDA
3
VDDX
4, 5
XO1, XO2
6
GNDX
9
GND_CMOS
10
CMOS OUT/SEL1
11
VDD_CMOS
12
VDD
13
LVDS/LVPECL OUT
14
LVDS/LVPECL OUT
15
GND
16
SEL0
Description
Analog Ground.
Analog Power Supply (3.3 V).
Crystal Oscillator Power Supply.
External Crystal.
Crystal Oscillator Ground.
Ground for LVCMOS Output.
LVCMOS Output/Output Frequency Select.
Power Supply for LVCMOS Output.
Power Supply for LVDS or LVPECL Output.
Complementary LVDS or LVPECL Output.
LVDS or LVPECL Output.
Ground for LVDS or LVPECL Output.
Output Frequency Select.
Table 12. Output Frequency Selection1
Mode
XTAL
SEL0
1
25 MHz
GND
2
25 MHz
VS
3
25.78125 MHz
VS
4
25 MHz
No connect
5
25 MHz
15 kΩ pull-up
6
25 MHz
15 kΩ pull-up
7
25 MHz
VS
8
19.44 MHz
VS
SEL1
X2
GND
GND
X2
X
VS
GND
VS
No connect
LVDS/LVPECL Output
100 MHz
156.25 MHz
161.13 MHz
125 MHz
159.375 MHz
312.5 MHz
106.25 MHz
155.52 MHz
LVCMOS Output
33.33 MHz
High-Z
High-Z
62.5 MHz
High-Z
High-Z
High-Z
High-Z
1 The AD9575 must be power-cycled if the select pin voltages are altered.
2 X = in Mode 1, Pin 10 is configured as an LVCMOS output (33.33 MHz) by forcing Pin 16 to GND. In Mode 4, Pin 10 is configured as an LVCMOS output (62.5 MHz) by
leaving Pin 16 unconnected.
Rev. A | Page 8 of 16
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