PRELIMINARY
CYW43438
16. WLAN RF Specifications
The CYW43438 includes an integrated direct conversion radio that supports the 2.4 GHz band. This section describes the RF
characteristics of the 2.4 GHz radio.
Note: Values in this data sheet are design goals and may change based on device characterization results.
Unless otherwise stated, the specifications in this section apply when the operating conditions are within the limits specified in
Table 22: “Environmental Ratings” and Table 24: “Recommended Operating Conditions and DC Characteristics” . Functional
operation outside these limits is not guaranteed.
Typical values apply for the following conditions:
■ VBAT = 3.6V.
■ Ambient temperature +25°C.
Figure 34. RF Port Location
Chip
Port
C2
TX
RX
Filter
Antenna
Port
10 pF
CYW43438
C1
L1
4.7 nH
10 pF
Note: All specifications apply at the chip port unless otherwise specified.
16.1 2.4 GHz Band General RF Specifications
Table 25. 2.4 GHz Band General RF Specifications
Item
TX/RX switch time
Condition
Including TX ramp down
Including TX ramp up
Minimum
Typical
Maximum
Unit
µs
–
–
–
–
5
2
RX/TX switch time
µs
Document Number: 002-14796 Rev. *K
Page 68 of 101
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