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

Número de pieza

componentes Descripción

Fabricante

LND-PLL901

IF QUADRTURE TRANSCEIVER

Linear Dimensions Semiconductor 

IF QUADRTURE TRANSCEIVER PROPOSED DATA SHEET

Operating

Characteristics

(continued)

A.C. Characteristics (continued)

Symbol Parameter

Min.

Typ.

Max.

Uni Conditions

Transmitter Section

FIFTX Tx IF Input Frequency

200

350

400

MHz

BBFTX Tx Baseband Output

2.0

MHz

1 dB Bandwidth

GF2

Tx Gain Flatness

4

dB across IF frequency band

TXRIN Tx baseband input resistance @ 425

500

575

Ω

TxBBIN (differential)

TMAX Tx maximum O/P signal

0.2

0.25

Vpp External load 100 ? each O/P

ALC (2…0) = 111 at 0.2 dB

compression - see note

TCG

Tx end-to-end transimpedance

0.12

V/mA External load 100 ? each O/P

ALC (2…0) = 111 - see note

TGS

Tx gain step accuracy

1.0-

1

dB see note 3

TXROP IF output resistance (differential)

200

Ω

LOL1 Tx LO leakage (70 MHz)

66-

61-

57-

dBm see notes 4, 5, 6

LOL2 Tx LO leakage (280 MHz)

49-

47-

46-

dBm see notes 4, 5, 6

IRM

Image Rejection

42-

36-

30-

dBc see note 5

STX

Tx Spurii -

65-

dBc o/p signal level

PLL reference and harmonics

0.25 Vpp - see note 7

MRTX Tx baseband input resistor match

1.0

% see note 9

(measured at TxBBIN)

PBTX I/Q Transmit phase balance

0.7

1

deg

ABTX I/Q Transmit amplitude balance

0.2

0.5

dB

LBG1 Loop back Gain

0.6

V/mA see note 10

Notes:

1 The transmit output compression is measured with the 70 MHz LC filters present component values

shown in the application diagram

2 The transmit end-toend transimpedance is (differential current in)/(differential current out)

such that a 2 mA peak-peak input from a DAC will give 250 mVpp at the O/P when correctly

terminated. Driving an open crcuit load the transimpedancewill be 6 dB higher.

3 Transmit gain step accuracy is for a single step in gain of either 3 dB, 6 dB or 12 dB

4

5

IMne2a0s0u≅roehdmwsitdhivTvxerLeCntfiialtlemrseparseusreendt

at Tx output with ALC

- components values

(2...0) = 111

as shown in the

application diagram

6 0 dBm 1 mW

7 Measured with the 70 MHz and 350 MHz LC filters present - component values as shown in the

application diagram

8 STX4 excludes legitimate mixed products

9 This is match between all 4 250 ohms input resistors

10 The loop back gain is such that a 2 mA differential pk-pk current input DAC (1 mA full scale

current for each input) will give a 1.2 Vpp single ended output at the fnal baseband output

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

Share Link: