SA9503 Ver la hoja de datos (PDF) - Philips Electronics

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Fabricante

SA9503

Dual-band, CDMA/AMPS LNA and downconverter mixers

Philips Electronics 

Philips Semiconductors

Dual-band, CDMA/AMPS LNA

and downconverter mixers

Objective specification

SA9503

MODE SELECT LOGIC AND DC CHARACTERISTICS

The SA9503 chip has several modes of operation for which the selection logic is defined in the following two tables. Different mode selections

require different portions of the circuit to be active. Modes from unlisted combinations of logic pins, are not valid. Total current consumption of

the device is the sum of the currents for the mixer portion (Table 2) and the LNA portion (Table 3).

Table 2. Mode logic definition for Downconverter mixers

VCC = 2.7 V to 3.3 V, 2.85 V typical; Tamb = –40 to +85 °C

MODES

(Tx) LO

BUFFER

(Tx) LO

BUFFER

OUTPUT

DOUBLER POWER

DOWN1

LOGIC INPUT PINS

PCS/CEL

CDMA/FM

LO DOUBLER

PCS

1 PCS1

On

2 GHz

Off

1

1

0

2 PCS1 Idle

Off

—

Off

1

1

0

3 PCS2

On

2 GHz

On

1

1

1

4 PCS2 Idle

Off

—

On

1

1

1

Cellular CDMA

5 CDMA

On

1 GHz

Off

1

0

1

6 CDMA Idle

Off

—

Off

1

0

1

7 FM

On

1 GHz

Off

1

0

0

8 FM Idle

Off

—

Off

1

0

0

Power Down

9 Sleep1

x

x

Off

0

x

x

NOTES:

x = Don’t care

1. The device will be in the Power Down mode (sleep) when control lines S0 = 1, S1 = 0, and S2 = 0.

(Tx) LO

ENABLE

1

0

1

0

1

0

1

0

x

CURRENT (mA)

TYP MAX

26

29.9

16

18.4

30

34.5

20

23

23

26.5

13

15

16.8 19.3

6.8

7.8

1 µA 50 µA

Table 3. Mode logic definition for LNA

VCC = 2.7 V to 3.3 V, 2.85 V typical; Tamb = –40 to +85 °C

MODES

LOGIC INPUTS

CURRENT CONSUMPTION (mA)

PCS/CEL

S0

S1

S2

TYP

MAX

1 CEL_L (High linearity)

0

1

1

1

13.2

15.0

2 CEL_1 (High gain)

0

0

1

1

4.9

6.0

3 CEL_2 (Next lower gain)

0

0

1

0

4.9

6.0

4 CEL_3 (Next lower gain)

0

0

0

1

4.9

6.0

5 CEL_4 (Next lower gain)

0

0

0

0

3.7

4.5

6 PCS_L (High linearity)

1

1

1

1

13.3

15.0

7 PCS_1 (High gain)

1

0

1

1

5.9

7.2

8 PCS_2 (Lower gain)

1

0

1

0

5.9

7.2

9 PCS_3 (Next lower gain)

1

0

0

1

5.9

7.2

10 PCS_4 (Next lower gain)

1

0

0

0

3.7

4.5

11 Mixers ON (LNA portion OFF)

x

1

1

0

1 µA

50 µA

12 Reserved (Sleep)

x

1

0

1

13 Sleep

x

1

0

0

NOTES:

x = Don’t care

1. The device will be in the Power Down mode (sleep) when control lines S0 = 1, S1 = 0, and S2 = 0.

(Note 1)

(Note 1)

(Note 1)

(Note 1)

1999 Jul 29

5

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