ADE7753
–7–
REV. PrC 01/02
PRELIMINARY TECHNICAL DATA
PIN CONFIGURATIONPIN CONFIGURATION
PIN CONFIGURATIONPIN CONFIGURATION
PIN CONFIGURATION
SSOP Packages
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
DGND
CS
CLKOU
T
CLKIN
ZX
CF
ADE7753
TOP VIEW
(Not to Scale)
AGND
IRQ
RESET
DVDD
V1P
V1N
V2N
V2P
SAG
REFIN/OUT
11
12
AVDD
DIN
DOUT
SCLK
Pin No.Pin No.
Pin No.Pin No.
Pin No. MNEMONICMNEMONIC
MNEMONICMNEMONIC
MNEMONIC DESCRIPTIONDESCRIPTION
DESCRIPTIONDESCRIPTION
DESCRIPTION
15 CLKIN Master clock for ADCs and digital signal processing. An external clock can be pro-
vided at this logic input. Alternatively, a parallel resonant AT crystal can be connected
across CLKIN and CLKOUT to provide a clock source for the ADE7753. The clock
frequency for specified operation is 3.579545MHz. Ceramic load capacitors of between
22pF and 33pF should be used with the gate oscillator circuit. Refer to crystal manu-
facturers data sheet for load capacitance requirements.
16 CLKOUT A crystal can be connected across this pin and CLKIN as described above to provide a
clock source for the ADE7753. The CLKOUT pin can drive one CMOS load when
either an external clock is supplied at CLKIN or a crystal is being used.
17 CS Chip Select. Part of the four wire SPI Serial Interface. This active low logic input al-
lows the ADE7753 to share the serial bus with several other devices. See ADE7753 Serial
Interface.
18 SCLK Serial Clock Input for the synchronous serial interface. All Serial data transfers are
synchronized to this clock—see ADE7753 Serial Interface. The SCLK has a schmitt-trigger
input for use with a clock source which has a slow edge transition time, e.g., opto-
isolator outputs.
19 DOUT Data Output for the Serial Interface. Data is shifted out at this pin on the rising edge of
SCLK. This logic output is normally in a high impedance state unless it is driving data
onto the serial data bus—see ADE7753 Serial Interface..
20 D IN Data Input for the Serial Interface. Data is shifted in at this pin on the falling edge of
SCLK—see ADE7753 Serial Interface..