CSR1001A04-IQQA-R Datasheet, PDF (12/45 Pages) –

1.2 Device Terminal Functions
Radio
RF
Lead Pad Type
10 RF
Supply Domain
VDD_RADIO^(a)
(a) _{The VDD_RADIO domain is generated from VDD_REG_IN, see Figure 6.1.}
Synthesiser and
Oscillator
XTAL_32K_OUT
XTAL_32K_IN
XTAL_16M_OUT
XTAL_16M_IN
Lead Pad Type
4 Analogue
5 Analogue
14 Analogue
15 Analogue
Supply Domain
VDD_BAT
VDD_BAT
VDD_ANA^(b)
VDD_ANA^(b)
(b) _{The VDD_ANA domain is generated from VDD_REG_IN, see Figure 6.1.}
I²C Interface
Lead Pad Type
Supply Domain
I2C_SDA
Bidirectional, tristate,
54 with weak internal pull- VDD_PADS
up
I2C_SCL
53
Input with weak internal
pull-up
VDD_PADS
Description
Bluetooth transmitter / receiver.
Description
Drive for sleep clock crystal.
32.768kHz sleep clock input.
Drive for crystal.
Reference clock input.
Description
I²C data input / output or SPI serial flash
data output (SF_DOUT). If connecting to
SPI serial flash, connect this pin to SO on
the serial flash. See Section 5.3.
I²C clock or SPI serial flash clock output
(SF_CLK), see Section 5.3.
Production Information
© Cambridge Silicon Radio Limited 2011-2013
Page 11 of 44
CS-216358-DSP5
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