ES7201
High Performance PDM Stereo Audio ADC
FEATURES
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•
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APPLICATIONS
High performance advanced deltasigma audio ADC
90 dB dynamic range at 26 dB PGA
-85 dB THD+N
Low noise PGA
8 to 96 kHz sampling frequency
Low power
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•
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Mic Array
Soundbar
Audio Interface
Digital TV
A/V Receiver
DVR
NVR
ORDERING INFORMATION
ES7201 -40°C ~ +85°C
QFN-12
BLOCK DIAGRAM
AINLP/AINLN
AINRP/AINRN
PGA
Advanced
Delta-sigma
Modulator
Clock Manager
Reset
RESETb
1
PDM
Data
Interface
DATA
CLOCK
Everest Semiconductor
1.
2.
3.
Confidential
ES7201
PIN OUT AND DESCRIPTION ................................................................................................ 3
TYPICAL APPLICATION CIRCUIT.......................................................................................... 4
ELECTRICAL CHARACTERISTICS ....................................................................................... 4
ABSOLUTE MAXIMUM RATINGS.................................................................................................. 4
RECOMMENDED OPERATING CONDITIONS ................................................................................ 4
ADC ANALOG AND FILTER CHARACTERISTICS AND SPECIFICATIONS .......................................... 5
DC CHARACTERISTICS .................................................................................................................. 5
PDM DATA SWITCHING SPECIFICATIONS .................................................................................... 5
4.
5.
6.
PACKAGE ................................................................................................................................ 6
CORPORATE INFORMATION ................................................................................................ 7
IMPORTANT NOTICE AND DISCLAIMER.............................................................................. 7
Revision 3.0
2
October 2020
Latest datasheet: www.everest-semi.com or info@everest-semi.com
Everest Semiconductor
Confidential
ES7201
1. PIN OUT AND DESCRIPTION
AINLN
AINLP
REFQ
10
11
12
RESETb
DATA
CLOCK
1
2
3
ES7201
9 VDD
8 GND
7 REFP
6
5
4
AINRN
AINRP
VOLT
Pin Name
Pin number
Input or Output
VOLT
4
I
AINLP, AINLN
AINRP, AINRN
VDD, GND
REFP
REFQ
11,10
5, 6
9, 8
7
12
I
I
I
O
O
DATA, CLOCK
RESETb
Revision 3.0
2, 3
1
O, I
I
Pin Description
PDM clock and data
Active low reset
High: VDD = 3.3V
Low: VDD = 1.8V
Analog left inputs
Analog right inputs
Power supply
Filtering capacitor connection
Filtering capacitor connection
3
October 2020
Latest datasheet: www.everest-semi.com or info@everest-semi.com
Everest Semiconductor
Confidential
ES7201
2. TYPICAL APPLICATION CIRCUIT
The filter capacitors on REFP and REFQ pins must be located as close to ES7201 package as possible.
4.7uF or 10uF capacitor is for better audio performance.
U2
OUT+
VDD_MIC
VCC
1uF
AGND
MEMS
MIC
1uF
OUT-
GND
1uF
VDD (1.8V TO 3.3V)
13
REFQ
AINLP
AINLN
1uF
PDM_DATA
PDM_CLK
1
2
3
33pF
AGND
One 33pF capacitor is
recommended for PDM_CLK
10K
9
8
7
100nF
VOLT
AINRP
AINRN
VDD (1.8V TO 3.3V)
VDD (1.8V TO 3.3V)
VDD
GND
REFP
RESETb
DATA
CLO CK
ES7201
1uF
AGND
4
5
6
AGND
AGND
PAD
U1
12
11
10
AGND
10K
VOL_SET
AGND
U3
NC/10K
OUT+
VCC
1uF
1uF
MEMS
MIC
OUT-
AGND
GND
For 3.3V VDD, PIN4 VOLT must be high level
For 1.8V VDD, PIN4 VOLT must be low level
AGND
3. ELECTRICAL CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS
Continuous operation at or beyond these conditions may permanently damage the device.
PARAMETER
Supply Voltage Level
Analog Input Voltage Range
Digital Input Voltage Range
Operating Temperature Range
Storage Temperature
MIN
-0.3V
GND-0.3V
GND-0.3V
-40°C
-65°C
MAX
+3.6V
VDD+0.3V
VDD+0.3V
+85°C
+150°C
RECOMMENDED OPERATING CONDITIONS
PARAMETER
VDD
Revision 3.0
MIN
1.7
TYP
1.8/3.3
MAX
3.6
UNIT
V
4
October 2020
Latest datasheet: www.everest-semi.com or info@everest-semi.com
Everest Semiconductor
Confidential
ES7201
ADC ANALOG AND FILTER CHARACTERISTICS AND SPECIFICATIONS
Test conditions are as the following unless otherwise specify: VDD=3.3V, GND=0V, ambient
temperature=25°C, CLOCK=6.144 MHz.
PARAMETER
ADC Performance
Dynamic Range (A-weigh, 26 dB PGA)
THD+N (26 dB PGA)
Channel Separation (1KHz)
Interchannel Gain Mismatch
Gain Error
Analog Input
Full Scale Input Level
Input Impedance
MIN
TYP
MAX
UNIT
87
-88
97
90
-85
100
0.1
93
-82
103
dB
dB
dB
dB
%
±5
±0.0708*VDD/3.3
9.6 (23 dB PGA)
Vrms
KΩ
DC CHARACTERISTICS
PARAMETER
Normal Operation Mode
VDD=3.3V (16 kHz)
VDD=1.8V (16 kHz)
Power Down Mode
Digital Voltage Level
Input High-level Voltage
Input Low-level Voltage
Output High-level Voltage
Output Low-level Voltage
MIN
TYP
MAX
UNIT
22
4.6
0
0.7*VDD
VDD
0
mW
uA
V
V
V
V
0.5
PDM DATA SWITCHING SPECIFICATIONS
PARAMETER
CLOCK frequency
CLOCK duty cycle
Symbol
≤ 3.072 MHz
DATA valid
VDDD=3.3V
VDDD=1.8V
VDDD=3.3V
VDDD=1.8V
DATA hold
THOLD
TVALID
THOLD
MIN
0.512
40
45
11
19
10
18
MAX
6.144
60
55
27
61
26
56
UNIT
MHz
%
ns
ns
THOLD
CLOCK
TVALID
TVALID
DATA
Figure 1 PDM Data Timing
Revision 3.0
5
October 2020
Latest datasheet: www.everest-semi.com or info@everest-semi.com
Everest Semiconductor
Confidential
ES7201
4. PACKAGE (UNIT: MM)
Revision 3.0
6
October 2020
Latest datasheet: www.everest-semi.com or info@everest-semi.com
Everest Semiconductor
Confidential
ES7201
5. CORPORATE INFORMATION
Everest Semiconductor Co., Ltd.
No. 1355 Jinjihu Drive, Suzhou Industrial Park, Jiangsu, P.R. China, Zip Code 215021
苏州工业园区金鸡湖大道 1355 号国际科技园, 邮编 215021
Email: info@everest-semi.com
6. IMPORTANT NOTICE AND DISCLAIMER
Everest Semiconductor publishes reliable technical information about its products. Information
contained herein is subject to change without notice. It may be used by a party at their own
discretion and risk. Everest Semiconductor disclaims responsibility for any claims, damages,
costs, losses, and liabilities arising out of your use of the information. This publication is not to
be taken as a license to operate under any existing patents and intellectual properties.
Revision 3.0
7
October 2020
Latest datasheet: www.everest-semi.com or info@everest-semi.com
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