CLRC632 Datasheet, PDF (12/163 Pages) NXP Semiconductors – Multiple Protocol Contactless Reader IC

Philips Semiconductors
Multiple Protocol Contactless Reader IC
Product Specification Rev. 3.0; May 2003
CL RC632
PIN SYMBOL TYPE
DESCRIPTION
23 A1
I Address Line 1: Bit 1 of register address
24^{1 A2}
SCK
I Address Line 2: Bit 2 of register address
I Serial Clock: Clock for the SPI interface
25 DVDD PIWR Digital Power Supply
26 AVDD
PWR Analog Power Supply
27 AUX
O
Auxiliary Output: This pin delivers analog test signals. The signal delivered on this
output may be selected by means of the TestAnaOutSel Register.
28 AVSS
PWR Analog Ground
29 RX
I
Receiver Input: Input pin for the cards response, which is the load modulated 13.56
MHz energy carrier, that is coupled out from the antenna circuit.
30 VMID
PWR
Internal Reference Voltage: This pin delivers the internal reference voltage.
Note: It has to be supported by means of a 100 nF block capacitor.
31 RSTPD
Reset and Power Down: When HIGH, internal current sinks are switched off, the
I oscillator is inhibited, and the input pads are disconnected from the outside world.
With a negative edge on this pin the internal reset phase starts.
32 OSCOUT O Crystal Oscillator Output: Output of the inverting amplifier of the oscillator.
Table 3-1: CL RC632 Pin Description
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