DR-WLS1273L-102 RFM, DR-WLS1273L-102 Datasheet - Page 14

• Manufacturer Part Number: DR-WLS1273L-102
• Description: WiFi / 802.11 Modules 2.4 and 5.8GHz + BT
• Manufacturer: RFM

Specifications of DR-WLS1273L-102

• Rohs: yes
• Protocol Supported: 802.11 a/b/g
• Frequency Band: 64 kHz to 4 GHz
• Data Rate: 1 Mbps, 2 Mbps, 5.5 Mbps, 11 Mbps
• Interface Type: SDIO, UART
• Operating Supply Voltage: 3 V to 4.2 V
• Supply Current Transmitting: 350 mA
• Supply Current Receiving: 150 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Modulation Technique: CCK, DSSS

WLAN Power-up Sequence
The following sequence describes device power up from shutdown. Only the WLAN Core is enabled; the BT core is disabled.
1. No signals are allowed on the IO pins if no IO power supplied, because the IOs are not fail-safe. Exceptions are CLQ_REQ,
SLEEP_CLK, XTALP, and PCM_xxx, which are fail-safe and can tolerate external voltages with no VIO and DC2DC.
2. VBAT,VIO and SLEEP_CLK must be available before WLAN ENABLE.
3. T
The duration of T2 depends on:
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Operating system
Host enumeration for the SDIO
PLL configuration
Firmware download
Releasing the core from reset
Firmware initialization
WAKE-UP
= T1+T2. The duration of T1 is the time from WLAN ENABLE high until F
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REF
is valid (55 ms typical).
DR-WLS1273L-102 Data Sheet - 12/13/12
Page 14 of 31