
- 5 -
Rev. 0
EVAL-AD7707EB
S O C K E T S
T here are eleven sockets relevant to the operation of the
AD7707 on this evaluation board. T he functions of these
sockets are outlined in T able 4.
T able 4. Socket Functions
S ocket
SK T 1
F unction
9-way D-T ype connector used to interface to other
systems.
36-way centronics connector used to interface to
PC via parallel printer port.
Sub-M iniature BNC (SM B) C onnector. T he
analog input signal for the AIN1 input of the
AD7707 is applied to this socket.
Sub-M iniature BNC (SM B) C onnector. T he
analog input signal for the AIN2 input of the
AD7707 is applied to this socket.
Sub-M iniature BNC (SM B) C onnector. T he
analog input signal for the AIN3 input of the
AD7707 is applied to this socket.
Sub-M iniature BNC (SM B) C onnector. T he
analog input signal for the LCOM input of the
AD7707 may be applied to this socket.
Sub-M iniature BNC (SM B) C onnector. T he
analog input signal for the HBIAS input of the
AD7707 may be applied to this socket.
Sub-M iniature BNC (SM B) C onnector. T he
analog input signal for the HCOM input of the
AD7707 may be applied to this socket.
Sub-M iniature BNC (SM B) C onnector. T he
reference voltage for the REFIN+ input of the
AD7707 is applied to this socket when the board
is configured for an externally applied reference
voltage.
Sub-M iniature BNC (SM B) C onnector. T he
reference voltage for the REFIN- input of the
AD7707 is applied to this socket when the board
is configured for an externally applied reference
voltage.
Sub-M iniature BNC (SM B) C onnector. T he
master clock signal for the MCLK IN input of the
AD7707 is applied to this socket when the board
is configured for an externally applied master
clock.T he AD7707 can be operated with internal
clock frequencies in the range 500kHz to 5MHz.
SK T 2
SK T 3
SK T 4
SK T 5
SK T 6
SK T 7
SK T 8
SK T 9
SK T 10
SK T 11
C O NNE C T O R S
T here are two connectors on the AD7707 evaluation board as
outlined in T able 5.
T able 5. Connector Functions
C onnector
J1
F unctions
PCB Mounting T erminal Block. T he Digi-
tal Power Supply to the Evaluation Board
must be provided via this Connector if it is
not being supplied via SK T 1 or SK T 2.
PCB Mounting T erminal Block. T he Ana-
log Power Supply to the Evaluation Board
must be provided via this Connector.
J2
S W IT C H E S
T here is one switch on the AD7707 Evaluation board. SW1
is a push-button reset switch. Pushing this switch activates the
active low
RESET
input on the AD7707 which resets the
control logic, interface logic, calibration coefficients, digital
filter and analog modulator of the part to power-on status.