RF226AP datasheet(6/46 Pages) NXP

6 / 46 page

The observation receiver chains are identical to the main receive chains, but they have

their own completely independent synthesizers. The two RO1 receivers (LB and HB)

share synthesizer and baseband, and can, hence, not be used concurrently. The

observation receiver synthesizers are kept running all the time.

The TRX receivers and the two observation receivers can be run at exactly the same LO

frequency, so that the transceiver can be used in 1x3 and 1x4 MIMO configuration, but

with reduced performance.

The analog filter bandwidths of the two TRX receivers are always the same. However,

the bandwidth selection of the receivers and transmitters are completely independent. The

bandwidth setting of the observation receivers are independent of both the TRX receivers

and transmitters and of the other observation receiver.

Below is the RF112L0H block diagram of the Transceiver digital controller:

aaa-037481

COMMAND

OTP

INCL. CTRL.

WDOG

ASP

PROGRAM

RAM

PMEM

ACCESS

PAD

CONTROL

DBG

ASP TOP

XBUS

CORDIC

lin2log/log2lin

BIST

halt

dbg

data

RAM-1

ENABLE

COUNTER A

ENABLE

COUNTER B

MAP

RSBUS

MASTER

FREQ

COUNT

AUX ADC

CGU

ANALOG

40/160 MHz

RSBUS SLAVES

∑ MODULATOR

(TRX SYNTH)

∑ MODULATOR

(OBS1 SYNTH)

∑ MODULATOR

(OBS2 SYNTH)

RX/TX gain

RSSI data 4x2 bits

GAIN

RSSI

DECODER

S1 S2

APB

I2C

APB

GO-PULSE

GENERATOR

TIMER A

TIMER B

JTAG

LVDS

PINMUX

APB

LLCP

INT

APB

BIST

data

RAM-2

Figure 3. RF112L0H Digital Block Diagram

Introduction

RF112L0H Transceiver Data Sheet, Rev. A, 12/2020

Preliminary

NXP Semiconductors

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