AD6641 Analog Devices, AD6641 Datasheet - Page 13

• Manufacturer Part Number: AD6641
• Description: 250 MHz Bandwidth DPD Observation Receiver
• Manufacturer: Analog Devices

Table 9. Parallel CMOS Mode Pin Function Descriptions
Pin No.
0
1, 2, 18, 19, 20, 28, 54
3
4
5
6
7, 24, 47
8, 23, 48
9
10
11
12
13
14
15
16
17
21
22
25
26
27
29
30, 32, 33, 34, 37, 38, 39,
41, 42, 43, 46
31
35
36
40
44
Mnemonic
EPAD
DNC
PD0
PD1
PD2
PD3
DRVDD
DRGND
PD4
PD5
PD6
PD7
PD8
PD9
PD10
PD11
SP_SDO
SP_SDFS
SP_SCLK
SDIO
SCLK
CSB
SPI_VDDIO
AVDD
VREF
VIN+
VIN−
CML
CLK+
1. DNC = DO NOT CONNECT. DO NOT CONNECT TO THIS PIN.
2. THE EXPOSED PAD IS THE ONLY ANALOG GROUND
CONNECTION FOR THE CHIP. IT MUST BE CONNECTED TO PCB AGND.
Description
Exposed Pad. The exposed pad is the only ground connection for the chip. The pad must be
connected to PCB AGND.
Do Not Connect. Do not connect to this pin.
PD0 Data Output.
PD1 Data Output.
PD2 Data Output.
PD3 Data Output.
1.9 V Digital Output Supply.
Digital Output Ground.
PD4 Data Output.
PD5 Data Output.
PD6 Data Output.
PD7 Data Output.
PD8 Data Output.
PD9 Data Output.
PD10 Data Output.
PD11 Data Output (MSB).
SPORT Output.
SPORT Frame Sync Input (Slave Mode)/Output (Master Mode).
SPORT Clock Input (Slave Mode)/Output (Master Mode).
Serial Port Interface (SPI) Data Input/Output (Serial Port Mode).
Serial Port Interface Clock (Serial Port Mode).
Serial Port Chip Select (Active Low).
1.9 V or 3.3 V SPI I/O Supply.
1.9 V Analog Supply.
Voltage Reference Input/Output. Nominally 0.75 V.
Analog Input—True.
Analog Input—Complement.
Common-Mode Output. Enabled through the SPI, this pin provides a reference for the
optimized internal bias voltage for VIN+ and VIN−.
Clock Input—True.
DRGND
DRVDD
DNC
DNC
Figure 9. Pin Configuration for Parallel CMOS Mode
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PD8
PD9
10
12
13
14
11
1
2
3
4
5
6
7
8
9
PIN 1
INDICATOR
Rev. 0 | Page 13 of 28
(Not to Scale)
AD6641
TOP VIEW
42
41
40
39
38
37
36
35
34
33
32
31
30
29
AVDD
AVDD
CML
AVDD
AVDD
AVDD
VIN–
VIN+
AVDD
AVDD
AVDD
VREF
AVDD
SPI_VDDIO
AD6641