參數(shù)資料
型號: AD9550BCPZ
廠商: Analog Devices Inc
文件頁數(shù): 18/20頁
文件大?。?/td> 0K
描述: IC INTEGER-N TRANSLATOR 32-LFCSP
標(biāo)準(zhǔn)包裝: 1
類型: 時鐘/頻率轉(zhuǎn)換器
PLL:
主要目的: 以太網(wǎng),GPON,SONET/SHD,T1/E1
輸入: CMOS
輸出: CMOS,LVDS,LVPECL
電路數(shù): 1
比率 - 輸入:輸出: 1:2
差分 - 輸入:輸出: 無/是
頻率 - 最大: 810MHz
電源電壓: 3.135 V ~ 3.465 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 32-WFQFN 裸露焊盤,CSP
供應(yīng)商設(shè)備封裝: 32-LFCSP-WQ
包裝: 托盤
AD9550
Rev. 0 | Page 7 of 20
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
NOTES
1. NC = NO CONNECT.
2. EXPOSED DIE PAD MUST BE CONNECTED TO GND.
PIN 1
INDICATOR
1
Y4
2
Y5
3
A0
4
A1
5
A2
6
A3
7
REF
8
GND
24 GND
23 OUT2
22
21 VDD
20 LOCKED
19 LDO
18 VDD
17 LDO
9
N
C
1
0
N
C
1
G
N
D
1
2
1
3
O
M
1
4
O
M
0
1
5
R
E
S
E
T
1
6
F
IL
T
E
R
3
2
Y
3
1
Y
2
3
0
Y
1
2
9
Y
0
2
8
V
D
2
7
O
U
T
1
2
6
2
5
G
N
D
TOP VIEW
(Not to Scale)
AD9550
O
U
T
1
OUT2
O
M
2
0
90
57
-0
02
Figure 2. Pin Configuration
Table 5. Pin Function Descriptions
Pin No.
Mnemonic
Type1
Description
29, 30, 31,
32, 1, 2
Y0, Y1, Y2, Y3,
Y4, Y5
I
Control Pins. These pins select one of 52 preset output frequency combinations for OUT1 and
OUT2. Each pin has an internal 100 kΩ pull-up resistor.
3, 4, 5, 6
A0, A1, A2, A3
I
Control Pins. These pins select one of 15 preset input reference frequencies. Each pin has an
internal 100 kΩ pull-up resistor.
7
REF
I
Reference Clock Input. Connect this pin to a single-ended active clock input signal.
8, 11, 24, 25
GND
P
Ground.
9, 10
NC
No Connection. Make no external connection to these pins. Do not connect to GND or VDD.
12, 13, 14
OM2, OM1,
OM0
I
Control Pins. These pins select one of eight preset output configurations (see Table 10). Each pin
has an internal 40 kΩ pull-up resistor.
15
RESET
I
Reset Internal Logic. This is a digital input pin. This pin is active low with a 100 kΩ internal pull-up
resistor and resets the internal logic to default states (see the Automatic Power-On Reset section).
16
FILTER
I/O
Loop Filter Node for the PLL. Connect external loop filter components (see Figure 24) from this pin
to Pin 17 (LDO).
17, 19
LDO
P/O
LDO Decoupling Pins. Connect a 0.47 μF decoupling capacitor from each of these pins to ground.
18, 21, 28
VDD
P
Power Supply Connection: 3.3 V Supply. Pin 21 supplies the OUT2 driver and Pin 28 supplies the
OUT1 driver.
20
LOCKED
O
Locked Status Indicator for the PLL. Active high.
26, 22
OUT1, OUT2
O
Complementary Square Wave Clocking Outputs.
27, 23
OUT1, OUT2
O
Square Wave Clocking Outputs.
EP
Exposed Die Pad. The exposed die pad must be connected to GND.
1 I is input, I/O is input/output, O is output, P is power, and P/O is power/output.
2 N/A means not applicable.
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