Measured on the CC2340R5 reference design with Tc = 25 °C, VDDS = 3.0 V, unless otherwise noted.(4)
|
PARAMETER |
MIN |
TYP |
MAX |
UNIT |
|
Crystal frequency |
|
48 |
|
MHz |
ESR |
Equivalent series resistance(5)(6) CL = 9 pF |
|
|
35 |
Ω |
Equivalent series resistance(5)(6) CL = 8 pF |
|
|
50 |
Ω |
Equivalent series resistance(5)(6) CL = 7 pF |
|
|
60 |
Ω |
Equivalent series resistance(5)(6) 5 pF ≤ CL ≤ 6 pF |
|
|
80 |
Ω |
CL |
Crystal load capacitance(1) |
5 |
7(2) |
9 |
pF |
Start-up time (3) |
Until clock is qualified |
|
200 |
|
µs |
(1) Adjustable load capacitance is integrated into the device. External load capacitors are required for systems targeting compliance with certain regulations.
(2) On-chip default connected capacitance including reference design parasitic capacitance. Connected internal capacitance is changed through software in the SysConfig.
(3) Start-up time using the TI-provided power driver. Start-up time may increase if driver is not used.
(4) Tai-Saw TZ3908AAAO43 has been validated for CC2340R5 design.
(5) The max ESR value will be reduced if the crystal has a shunt capacitance of C0 > 1pF
(6) Startup margin ≥10