LND-PLL901 Ver la hoja de datos (PDF) - Linear Dimensions Semiconductor

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componentes Descripción

Fabricante

LND-PLL901

IF QUADRTURE TRANSCEIVER

Linear Dimensions Semiconductor 

IF QUADRTURE TRANSCEIVER PROPOSED DATA SHEET

Operating

Characteristics

(continued)

A.C. Characteristics

Symbol Parameter

Min.

Typ.

Max.

Unit Conditions

Receiver Section

FIFRX IF Input Frequency

200

400

MHz

BBFRX Rx Baseband Output

2.0

5.0

MHz

1 dB Bandwidth

GR1

Receive Gain

23

27

29

dB Rload => 100 ? AC coupled

(AGC(4…0) = 00000)

GR2

Receive Gain

70

73

76

dB Rload => 100 ? AC coupled

(AGC(4…0) = 11111)

RGS

Receive Gain Step Accuracy

0.5-

0.5

dB see note 1

GF1

Rx Gain Flatness

4

dB across IF frequency band

NF

Noise Figure (DSB)

19

dB RS = 50 ? maximum gain selected

20.5

see note 2

RCMP1 Receiver 1 dB

6

7

dBm AGC (4…0) = 00000; see note 3

Compression point

Rload => 100 ? AC coupled

RCMP2 Receiver 1 dB

5.5

6.5

dBm AGC (4…0) = 11111

Compression point

see note 3

S11

Input reflection coefficient

dB referred tp 50 ?

(single-ended)

11-

see note 4

SBB

Baseband Spurii

46-

dBc baseband signal level 1.2 Vpp

100 Hz - 1000 MHz

see note 5

AGCT Receive AGC response time

100

ns without baseband filter present

DCS1 DC settling time at IF2 (70 MHz)

300

ns see note 6

PBRX I/Q Receive phase balance

1

deg

ABRX I/Q Receive amplitude balance

0.2

0.3

dB

SOV

Saturated O/P voltage at

1.9

Vpp 10- dBm at RXIN, <1 Mhz

OPI/OPQ, any AGC setting

in baseband

DCBB DC offset, baseband output

150

mV see note 7

LPF1

Internal Baseband low pass filter

10

MHz

3 dB cutoff

LIM1

Limiter mode, maximum output

1

1.2

Vpp see note B

RLIM

Limiter, o/p resistance

340

400

460

?

(differential between RXFILP,

RXFILN)

GCL

Gain Change Rx Mode to Limiter 10.5-

11-

12-

dB

mode

Notes:

1 Receive gain step accuracy is for a single step in gain of either .5 dB, 5 dB or 10 dB

2

3

T0hdeBSmS≅B

noise figure

1 mW

will

be

NF

(SSB)

~

NF

(DSB)

+

3

dB

4 Usage of a resistor (R = 110 Ohms) placed directly in parallel with the input connector creates

an improvement in S11, measured value S11 = -28.5 dB

5 With Dallen-key-filter (f3dB = 600 kHZ) present; fout = 250 kHz

6 DC settling time from change in AGC gain is to within 10% of the final DC value

7 Baseband DC offset is measured relative to the mid point of the ADC reference voltage

8 Measured at the final baseband output with Receive filters in place

Linear Dimensions, Inc. 445 East Ohio Street, Chicago, IL 60611 p 312.3211810 f 312.321.1830

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