ADN2804 Data Sheet
Rev. D | Page 8 of 24
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
05801-004
TEST1 1
VCC 2
VREF 3
PIN
1
INDIC
AT
OR
T
O
P
VIEW
(Not to Scale)
24 VCC
23 VEE
22 LOS
21 SD
A
32 TEST2
20 SCK
19 SADDR5
18 VCC
17 VEE
THRADJ 9
REFCLK
P
10
REFCLKN
11
VCC 12
VEE 13
CF2 14
CF1 15
LO
L 16
NIN
4
PIN 5
SLICEP
6
SLICEN 7
VEE 8
31 VCC
30 VEE
29 DAT
AOUTP
28 DAT
AOUTN
27 SQUELCH
26 CLKOUTP
25 CLKOUTN
ADN2804*
*
THERE IS
AN EXPOSED P
AD ON THE BOT
TOM OF
THE
PACKAGE THAT MUST BE CONNECTED
TO GND.
Figure 5. Pin Configuration
Table 5. Pin Function Descriptions
Pin No. Mnemonic Type
1
Description
1 TEST1 Connect to VCC.
2 VCC P Power for Limiting Amplifier, LOS.
3 VREF AO Internal VREF Voltage. Decouple to GND with a 0.1 µF capacitor.
4 NIN AI Differential Data Input. CML.
5 PIN AI Differential Data Input. CML.
6 SLICEP AI Differential Slice Level Adjust Input.
7 SLICEN AI Differential Slice Level Adjust Input.
8 VEE P GND for Limiting Amplifier, LOS.
9 THRADJ AI LOS Threshold Setting Resistor.
10 REFCLKP DI Differential REFCLK Input. 10 MHz to 160 MHz.
11 REFCLKN DI Differential REFCLK Input. 10 MHz to 160 MHz.
12 VCC P VCO Power.
13 VEE P VCO GND.
14 CF2 AO Frequency Loop Capacitor.
Frequency Loop Capacitor.
16 LOL DO Loss-of-Lock Indicator. LVTTL active high.
17 VEE P FLL Detector GND.
18 VCC P FLL Detector Power.
19 SADDR5 DI Slave Address Bit 5.
20 SCK DI I
2
C Clock Input.
21 SDA DI I
2
C Data Input.
22 LOS DO Loss-of-Signal Detect Output. Active high. LVTTL.
23 VEE P Output Buffer, I
2
C GND.
24 VCC P Output Buffer, I
2
C Power.
25 CLKOUTN DO Differential Recovered Clock Output. LVDS.
26 CLKOUTP DO Differential Recovered Clock Output. LVDS.
27 SQUELCH DI Disable Clock and Data Outputs. Active high. LVTTL.
Differential Recovered Data Output. LVDS.
29 DATAOUTP DO Differential Recovered Data Output. LVDS.
30 VEE P Phase Detector, Phase Shifter GND.
31 VCC P Phase Detector, Phase Shifter Power.
32 TEST2 Connect to VCC.
Exposed Pad Pad P Connect to GND.
1
Type: P = power, AI = analog input, AO = analog output, DI = digital input, DO = digital output.