Rainbow Electronics ATmega128RFA1 - Manual (Page 507)

507
8266A-MCU Wireless-12/09
ATmega128RFA1
Symbol Parameter Condition Min
(1)
Typ
(1)
Max
(1)
Units
Gain = 10x
VREF = 1.6V
CLKADC = 2MHz
-0.75 LSB
Gain = 200x
VREF = 1.6V
CLKADC = 2MHz
TBD LSB
Gain = 1x 1 LSB
Gain = 10x 1.5 Gain Error
Gain = 200x 10
Gain = 1x
VREF = 1.6V
CLKADC = 2MHz
0.7 LSB
Gain = 10x
VREF = 1.6V
CLKADC = 2MHz
0.75 LSB
Offset Error
Gain = 200x
VREF = 1.6V
CLKADC = 2MHz
13 LSB
Conversion Time Free Running Conversion 100 µ s
Clock Frequency Single Ended Conversion 2000 kHz
V
REF
Reference Voltage 1.5 AVDD V
V
IN
Input Voltage 0 AVDD V
V
DIFF
Input Differential Voltage -AVDD AVDD V
ADC Conversion Output -512 511 LSB
Input Bandwith 20 kHz
R
REF
Reference Input Resistance TBD kΩ
R
AIN
Analog Input Resistance 2 kΩ
Note: 1. Values are guidelines only
2. All values are valid for EVDD = 3.0V
34.8 Transceiver Electrical Characteristics
34.8.1 Digital Interface Timing Characteristics
Test Conditions: T
OP
= 25°C, V
DD
= 3.0V, C
L
= 50 pF (unless otherwise stated)
Symbol Parameter Condition Min. Typ. Max. Units
t
12
AES core cycle time 24 µs
t
IRQ
Interrupt event latency Relative to the event to be indicated 9 µs
34.8.2 General RF Specifications
Test Conditions (unless otherwise stated):
V
DD
= 3.0V, f
RF
= 2.45 GHz, T
OP
= 25°C, Measurement setup see Figure 32-1 on page
493.
Symbol Parameter Condition Min. Typ. Max. Units
f
RF
Frequency range As specified in [1],[2] 2405 2480 MHz
f
CH
Channel spacing As specified in [1],[2] 5 MHz
f
HDR
Header bit rate (SHR, PHR) As specified in [1],[2] 250 kb/s