CC2420ZRTC Datasheet, PDF (12/96 Pages) Texas Instruments – 2.4 GHz IEEE 802.15.4 / ZigBee-ready RF Transceiver

CC2420
Parameter
Crystal load capacitance
Crystal ESR
Crystal oscillator start-up time
Phase noise
PLL loop bandwidth
PLL lock time
Min.
12
Typ.
16
Max. Unit
20
pF
Condition / Note
16 pF recommended
60

1.0
ms
16 pF load
−109
−117
−117
−117
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
Unmodulated carrier
At ±1 MHz offset from carrier
At ±2 MHz offset from carrier
At ±3 MHz offset from carrier
At ±5 MHz offset from carrier
100
kHz
192
s
The startup time from the crystal
oscillator is running and RX / TX
turnaround time
6.7 Digital Inputs/Outputs
Parameter
General
Min.
Typ.
Logic "0" input voltage
0
Logic "1" input voltage
Logic "0" output voltage
Logic "1" output voltage
Logic "0" input current
Logic "1" input current
FIFO setup time
FIFO hold time
0.7*
DVDD
0
2.5
NA
NA
20
10
Serial interface pins (SCLK, SI, SO
and CSn) timing specification
Max. Unit
0.3*
V
DVDD
DVDD V
0.4
V
VDD V
−1
A
1
A
ns
ns
Condition / Note
Signal levels are referred to the
voltage level at pin DVDD3.3
Output current −8 mA,
3.3 V supply voltage
Output current 8 mA,
3.3 V supply voltage
Input signal equals GND
Input signal equals VDD
TX unbuffered mode, minimum
time FIFO must be ready before
the positive edge of FIFOP
TX unbuffered mode, minimum
time FIFO must be held after the
positive edge of FIFOP
See Table 4 on page 28
SWRS041c
Page 12 of 85