ADE7569ASTZF16 Analog Devices Inc, ADE7569ASTZF16 Datasheet - Page 56

• Manufacturer Part Number: ADE7569ASTZF16
• Description: IC ENERGY METER MCU 16K 64LQFP
• Manufacturer: Analog Devices Inc

Specifications of ADE7569ASTZF16

• Applications: Energy Measurement
• Core Processor: 8052
• Program Memory Type: FLASH (16 kB)
• Controller Series: ADE75xx
• Ram Size: 512 x 8
• Interface: I²C, SPI, UART
• Number Of I /o: 20
• Voltage - Supply: 3.135 V ~ 3.465 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 64-LQFP
• Ic Function: Single Phase Energy Measurement IC
• Supply Voltage Range: 3.13V To 3.46V, 2.4V To 3.7V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: LQFP
• No. Of Pins: 64
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ADE7116/ADE7156/ADE7166/ADE7169/ADE7566/ADE7569
The ADE7169/ADE7569 have a built-in digital integrator to
recover the current signal from the di/dt sensor. The digital
integrator on the current channel is switched off by default when
the ADE7169/ADE7569 are powered up. Setting the INTE bit
(Bit 5) in the MODE1 register (Address 0x0B) turns on the
integrator. Figure 51 to Figure 54 show the gain and phase
response of the digital integrator.
Figure 52. Combined Phase Response of the Digital Integrator and
Figure 51. Combined Gain Response of the Digital Integrator and
–88.0
–88.5
–89.0
–89.5
–90.0
–90.5
–10
–20
–30
–40
–50
10
0
100
10
Phase Compensator
Phase Compensator
2
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQ
1000
10
3
Rev. B | Page 56 of 152
Note that the integrator has a −20 dB/dec attenuation and an
approximately −90° phase shift. When combined with a di/dt
sensor, the resulting magnitude and phase response should be a
flat gain over the frequency band of interest. The di/dt sensor
has a 20 dB/dec gain associated with it. It also generates
significant high frequency noise. Therefore, a more effective
antialiasing filter is needed to avoid noise due to aliasing (see
the Antialiasing Filter section).
When the digital integrator is switched off, the ADE7169/ADE7569
can be used directly with a conventional current sensor, such as a
current transformer (CT), or with a low resistance current
shunt.
Figure 54. Combined Phase Response of the Digital Integrator and
Figure 53. Combined Gain Response of the Digital Integrator and
–89.70
–89.75
–89.80
–89.85
–89.90
–89.95
–90.00
–90.05
–1.0
–1.5
–2.0
–2.5
–3.0
–3.5
–4.0
–4.5
–5.0
–5.5
–6.0
40
40
45
Phase Compensator (40 Hz to 70 Hz)
Phase Compensator (40 Hz to 70 Hz)
45
50
50
FREQUENCY (Hz)
FREQUENCY (Hz)
55
55
60
60
65
65
70
70