AP6330 Datasheet

AMPAK Technology Inc.

www.ampak.com.tw

Proprietary & Confidential Information

Doc. NO:

15

10. External clock reference

External LPO signal characteristics

Parameter

Specification

Units

Nominal input frequency

32.768

kHz

Frequency accuracy

30



ppm

Duty cycle

30 - 70

%

Input signal amplitude

400 to 1800

mV, p-p

Signal type

Square-wave

-

Input impedance

>100k

<5



pF

Clock jitter (integrated over 300Hz – 15KHz)

<1

Hz

Output high voltage

0.7Vio - Vio

V

External Ref_CLK signal characteristics

10.1 SDIO Pin Description

The module supports SDIO version 2.0 for 4-bit modes (100 Mbps), and high speed 4-bit (50

MHz clocks – 200 Mbps). It has the ability to stop the SDIO clock and map the interrupt

signal into a GPIO pin. This ‘out-of-band’ interrupt signal notifies the host when the WLAN

device wants to turn on the SDIO interface. The ability to force the control of the gated

clocks from within the WLAN chip is also provided.