Intermediate Frequency Digital Variable Gain Amplifier

IDTF1200

RevO

Page 13 of 13

April, 2011

DATASHEET

The picture and table below describes the recommended EVkit operation and BOM

5x5 QFN

5x5 QFN

Device

Device

EVB Serial #

EVB Serial #

Output 4:1 Balun

Output 4:1 Balun

Transformer

Transformer

DC Power

DC Power

Power Up:

Power Up:

Closed = On

Open = Off

Pullup

Pullup

Inductors

Inductors

V

V

MODE

MODE

Closed = Parallel Control

Open = Serial Control*

ATTN_IN

ATTN_IN

50

Ω

AMP_OUT

AMP_OUT

50

Ω

GC [0

6]

SPI*

SPI*

Input 4:1 Balun

Input 4:1 Balun

Transformer

Transformer

Not Guaranteed to Work

V

V

CC

REF / MONITOR

SET

SET

Item # Value

Size

Desc

Mfr. Part #

Mfr.

Ref Des

1

4:1 Balun

SM-22

4:1 Center Tap Balun

TC4-1TG2+

Mini Circuits

T1,T2

2

2.87k

0402

RES 2.87K OHM 1/10W 1% 0402 SMD

ERJ-2RKF2871X

Panasonic

R6

3

47k

0402

Pullup resistors for STBY and VMODE jumpers

RC0402FR-0747KL

Yageo

R4, R13

4

0

0402

RES 0.0 OHM 1/10W 0402 SMD

ERJ-2GE0R00X

Panasonic

R11

5

680 nH

1008

RF inductor, ceramic core, 5% tol, SMT, RoHS

1008CS-681XJLC

Coilcraft

L1,L2

6

10 nF

0402

CAP CER 10000PF 16V 10% X7R 0402

GRM155R71C103KA01D

MURATA

C1,C2,C8,C23,C24

7

1000 pF

0402

CAP CER 1000PF 50V C0G 0402

GRM1555C1H102JA01D

MURATA

C4,C10,C13,C19

8

0.1uF

0402

CAP CER .1UF 10V 10% X5R 0402

GRM155R61A104KA01D

MURATA

C9,C11,C17,C20

9

SMA

.062

SMA_END_LAUNCH

142-0711-821

Emerson Johnson

J1,J2,J3

10

Header_2Pin

TH_2

CONN HEADER VERT SGL 2POS GOLD

961102-6404-AR

3M

JP1,JP3

11

Header_14Pin TH_7x2

CONN HEADER 14 POS STRGHT GOLD

N2514-6002-RB

3M

JP5

12

F1200ZD

QFN-28

IF VGA

Q01B005M

IDT

U1

13

PCB

F1200 EV Kit Rev 1

14

DNP

0402

Resistors to ground on Gain ctrl lines

R14 thru R20