AD9831ASTZ Analog Devices Inc, AD9831ASTZ Datasheet - Page 4

• Manufacturer Part Number: AD9831ASTZ
• Description: IC DDS 10BIT 25MHZ CMOS 48-LQFP
• Manufacturer: Analog Devices Inc

Specifications of AD9831ASTZ

• Resolution (bits): 10 b
• Master Fclk: 25MHz
• Tuning Word Width (bits): 32 b
• Voltage - Supply: 2.97 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-TQFP, 48-VQFP
• Pll Type: Direct Digital Synthesis
• Frequency: 25MHz
• Supply Current: 15mA
• Supply Voltage Range: 2.97V To 5.5V
• Digital Ic Case Style: TQFP
• No. Of Pins: 48
• Operating Temperature Range: -40°C To +85°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: EVAL-AD9831EBZ - BOARD EVALUATION AD9831
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

EVAL-AD9831EB
Note: The remainder of the pins on the 36-way connector are no connects.
SOCKETS
There are six sockets relevant to the operation of the AD9831
on this evaluation board. The function of these sockets is out-
lined in Table 3.
Socket
REFIN
IOUT
MCLK
FSEL
PSEL0
PSEL1
PIN NO.
1
2
3
4
5
6
7
8
9
14
19
20
21
22
23
24
25
26
27
28
29
30
31
36
Table 2. 36-Way Connector Pin Funtions
Table 3. Socket Functions
Sub-Miniature BNC Socket for REFIN.
Sub-Miniature BNC Socket for the MCLK
Sub-Miniature BNC Socket for PSEL0.
Sub-Miniature BNC Socket for PSEL1.
Function
Sub-Miniature BNC Socket for IOUT.
input.
Sub-Miniature BNC Socket for FSELECT.
MNEMONIC
LATCH
D0
D1
D2
D3
D4
D5
D6
D7
RESET
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
LOAD
WR
- 4 -
CONNECTORS
There are three connectors on the AD9831 evaluation board
as outlined in Table 4.
Connector
J1
J2
J3
SWITCHES
There is one switch on the AD9831 evaluation board. This
switch is a double throw, end stackable switch. This switch
can be used to control the FSELECT, PSEL0 and PSEL1
inputs.
Table 4. Connector Functions
Functions
36-Way Centronics Connector.
PCB Mounting Terminal Block. The Digital
Power Supply to the Evaluation Board is
provided via this Connector.
PCB Mounting Terminal Block. The Ana-
log Power Supply to the Evaluation Board is
provided via this Connector.
REV O