Texas Instruments CC1070RSQ, Руководство пользователя

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CC1000
SWRS048A Page 6 of 55
Parameter Min. Typ. Max. Unit Condition / Note
Frequency Synthesiser
Section
Crystal Oscillator Frequency
3 16 MHz Crystal frequency can be 3-4, 6-8
or 9-16 MHz. Recommended
frequencies are 3.6864, 7.3728,
11.0592 and 14.7456. See page
35 for details.
Crystal frequency accuracy
requirement
±
50
±
25
ppm 433 MHz
868 MHz
The crystal frequency accuracy
and drift (ageing and
temperature dependency) will
determine the frequency accuracy
of the transmitted signal.
Crystal operation
Parallel C171 and C181 are loading
capacitors, see page 35
Crystal load capacitance
12
12
12 22
16
16 30
30
16 pF
pF
pF 3-4 MHz, 22 pF recommended
6-8 MHz, 16 pF recommended
9-16 MHz, 16 pF recommended
Crystal oscillator start-up time 5
1.5
2
ms
ms
ms
3.6864 MHz, 16 pF load
7.3728 MHz, 16 pF load
16 MHz, 16 pF load
Output signal phase noise
-85 dBc/Hz At 100 kHz offset from carrier
PLL lock time (RX / TX turn time)
200
µ
s
Up to 1 MHz frequency step
PLL turn-on time, crystal oscillator
on in power down mode 250
µ
s
Crystal oscillator running
Digital Inputs/Outputs
Logic “0” input voltage
0 0.3*VDD V
Logic ”1” input voltage
0.7*VDD VDD V
Logic “0” output voltage
0 0.4 V Output current -2.5 mA,
3.0 V supply voltage
Logic “1” output voltage
2.5 VDD V Output current 2.5 mA,
3.0 V supply voltage
Logic “0” input current
NA -1
µ
A
Input signal equals GND
Logic “1” input current
NA 1
µ
A
Input signal equals VDD
DIO setup time
20 ns TX mode, minimum time DIO
must be ready before the positive
edge of DCLK
DIO hold time
10 ns TX mode, minimum time DIO
must be held after the positive
edge of DCLK
Serial interface (PCLK, PDATA and
PALE) timing specification
See Table 2 page 14
Current Consumption
Power Down mode
0.2 1
µ
A
Oscillator core off