ATA5771-PXQW Atmel, ATA5771-PXQW Datasheet - Page 137
ATA5771-PXQW
Manufacturer Part Number
ATA5771-PXQW
Description
XMITTR UHF ASK/FSK 868MHZ 24VQFN
Manufacturer
Atmel
Datasheet
1.ATA5773-DK1.pdf
(219 pages)
Specifications of ATA5771-PXQW
Frequency
868MHz ~ 928MHz
Modulation Or Protocol
UHF
Power - Output
8dBm
Voltage - Supply
2 V ~ 4 V
Current - Transmitting
9.8mA
Data Interface
PCB, Surface Mount
Memory Size
4kB Flash, 256B EEPROM, 256B SRAM
Antenna Connector
PCB, Surface Mount
Operating Temperature
-40°C ~ 85°C
Package / Case
24-VQFN Exposed Pad, 24-HVQFN, 24-SQFN, 24-DHVQFN
Processor Series
ATA5x
Core
AVR8
Data Bus Width
8 bit
Program Memory Type
Flash
Program Memory Size
4 KB
Data Ram Size
256 B
Interface Type
SPI, USI
Maximum Clock Frequency
4 MHz
Number Of Programmable I/os
12
Number Of Timers
2
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 12 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Applications
-
Sensitivity
-
Data Rate - Maximum
-
Current - Receiving
-
Lead Free Status / Rohs Status
Details
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4.19
4.19.1
9137E–RKE–12/10
Analog Comparator
Analog Comparator Multiplexed Input
The Analog Comparator compares the input values on the positive pin AIN0 and negative pin
AIN1. When the voltage on the positive pin AIN0 is higher than the voltage on the negative pin
AIN1, the Analog Comparator output, ACO, is set. The comparator can trigger a separate
interrupt, exclusive to the Analog Comparator. The user can select Interrupt triggering on com-
parator output rise, fall or toggle. A block diagram of the comparator and its surrounding logic
is shown in
Figure 4-58. Analog Comparator Block Diagram
Note:
When the Analog to Digital Converter (ADC) is configurated as single ended input channel, it
is possible to select any of the ADC7..0 pins to replace the negative input to the Analog Com-
parator. The ADC multiplexer is used to select this input, and consequently, the ADC must be
switched off to utilize this feature. If the Analog Comparator Multiplexer Enable bit (ACME in
ADCSRB) is set and the ADC is switched off (ADEN in ADCSRA is zero), MUX1..0 in ADMUX
select the input pin to replace the negative input to the Analog Comparator, as shown in
4-46. If ACME is cleared or ADEN is set, AIN1 is applied to the negative input to the Analog
Comparator.
Table 4-46.
ACME
0
1
1
1
1
1
1
1
1
1
ADC MULTIPLEXER
1. See
REFERENCE
ACME
ADEN
OUTPUT
BANDGAP
Figure
Analog Comparator Multiplexed Input
(1)
Table
ADEN
ACBG
4-58.
x
1
0
0
0
0
0
0
0
0
4-46.
MUX4..0
00000
00001
00010
00011
00100
00101
00110
00111
xx
xx
Analog Comparator Negative Input
AIN1
AIN1
ADC0
ADC1
ADC2
ADC3
ADC4
ADC5
ADC6
ADC7
(1)
Atmel ATA5771/73/74
Table
137
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