TH71221 datasheet(27/44 Pages) MELEXIS

27 / 44 page

TH71221

27 to 930MHz

FSK/FM/ASK Transceiver

39010 071221

Page 27 of 44

Data Sheet

Rev. 005

June/07

6.3

DC Characteristics

all parameters under normal operating conditions, unless otherwise stated;

typical values at TA = 23 °C and VCC = 3 V

Parameter

Symbol

Condition

Min

Typ

Max

Unit

Operating currents

Standby current

ISBY

Standby mode

200

Reg. BAND

Idle mode (RO only),

Reg. IDLESEL = 0

0.2

0.3

0.6

1 (> 500 MHz)

2.3

3.5

4.8

Idle current

1 (> 500 MHz)

IIDLE

Idle mode,

(whole PLL),

Reg. IDLESEL = 1

3.9

6.3

8.0

0 (< 500 MHz)

2.9

6.1

8.2

1 (> 500 MHz)

IRXL_ASK

ASK Receive mode,

LNA @ low gain

5.3

8.9

12.1

0 (< 500 MHz)

3.1

7.4

10.3

Receive supply

current - ASK

1 (> 500 MHz)

IRXH_ASK

ASK Receive mode,

LNA @ high gain

5.5

10.2

14.2

0 (< 500 MHz)

4.0

6.7

9.2

1 (> 500 MHz)

IRXL_FSK

FSK Receive mode,

LNA @ low gain

5.5

9.5

12.9

0 (< 500 MHz)

4.2

8.0

11.3

Receive supply

current - FSK

1 (> 500 MHz)

IRXH_FSK

FSK Receive mode,

LNA @ high gain

5.7

10.8

15.0

0 (< 500 MHz)

8.7

13.2

15.6

Transmit

supply current

@ P1

1 (> 500 MHz)

IP1

Transmit mode,

Reg. TXPOWER =00,

VPS_PA = 0.3V,

continuous wave

(CW) mode

11.5

17.1

20.5

0 (< 500 MHz)

10.0

15.2

18.8

Transmit

supply current

@ P2

1 (> 500 MHz)

IP2

Transmit mode,

Reg. TXPOWER =01,

VPS_PA = 0.3V,

CW mode

12.8

19.1

23.7

0 (< 500 MHz)

11.6

18.6

23.9

Transmit

supply current

@ P3

1 (> 500 MHz)

IP3

Transmit mode,

Reg. TXPOWER =10,

VPS_PA = 0.3V,

CW mode

14.4

22.5

28.8

0 (< 500 MHz)

13.4

23.0

33.2

Transmit

supply current

@ P4

1 (> 500 MHz)

IP4

Transmit mode,

Reg. TXPOWER =11,

VPS_PA = 0.3V,

CW mode

16.2

26.9

38.1

Digital pin characteristics

Input low voltage (CMOS)

pins IN_DTA, ASK/FSK,

RE/SCLK, TE/SDTA, FS0/SDEN,

FS1/LD

VIL

VIL_FS1/LD only

in Stand-alone user

mode

-0.3

0.3*VCC

Input high voltage (CMOS)

pins IN_DTA, ASK/FSK,

RE/SCLK, TE/SDTA, FS0/SDEN,

FS1/LD

VIH

VIH_FS1/LD only

in Stand-alone user

mode

0.7*VCC

Vcc+0.3

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