ATR2406_14 Datasheet, PDF (3/26 Pages) ATMEL Corporation – Low-IF 2.4-GHz ISM Transceiver

2. Pin Configuration
Figure 2-1. Pinning QFN32 - 5 × 5
PU_REG
REF_CLK
RSSI
VS_IFD
VS_IFA
RX-CLOCK
IC
IREF
32 31 30 29 28 27 26 25
1
24
2
23
3
22
4 _ATR2406 21
5
20
6
19
7
18
8
17
9 10 11 12 13 14 15 16
RX_ON
IC
IC
RAMP_OUT
TX_OUT
RX_IN1
RX_IN2
VS_TRX
Table 2-1. Pin Description
Pin
Symbol Function
1
PU_REG Power-up input for auxiliary regulator
2
REF_CLK Reference frequency input
3
RSSI
Received signal strength indicator output
4
VS_IFD Digital supply voltage
5
VS_IFA Analog supply voltage for IF circuits
6
RX-CLOCK RX-CLOCK, if RX mode with clock recovery is active
7
IC
Internally connected. Connect to V_S if internal AUX regulator is not used
8
IREF
External resistor for band-gap reference
9
REG_CTRL Auxiliary voltage regulator control output
10
VREG
Auxiliary voltage regulator output
11
VS_REG Auxiliary voltage regulator supply voltage
12
REG_DEC Decoupling pin for VCO_REG
13
VREG_VCO VCO voltage regulator
14
VTUNE VCO tuning voltage input
15
CP
Charge-pump output
16
VS_SYN Synchronous supply voltage
17
VS_TRX Transmitter receiver supply voltage
18
RX_IN2 Differential receiver input 2
19
RX_IN1 Differential receiver input 1
20
TX_OUT TX driver amplifier output
21
RAMP_OUT Ramp generator output for PA power ramping
22
IC
Internally connected, do not connect on PCB
23
IC
Internally connected, do not connect on PCB
24
RX_ON RX control input
ATR2406 [DATASHEET]
3
4779Q–ISM–09/14