MAX9947ETE Просмотр технического описания (PDF) - Maxim Integrated

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производитель

MAX9947ETE

AISG Integrated Transceiver

Maxim Integrated 

MAX9947

AISG Integrated Transceiver

Electrical Characteristics (continued)

(VCC = 5V, VL = 3.3V, TXOUT connected with 50Ω to RXIN, 4.1kΩ resistor between BIAS and RES, 10kΩ resistor between RES and

GND, 1kΩ resistor between SYNCOUT and VCC, TA = TMIN to TMAX, unless otherwise specified. XTAL frequency 8.704MHz ±30ppm.

Typical values are at TA = +25°C.) (Note 2)

PARAMETER

SYMBOL

SWITCHING CHARACTERISTICS

Receiver Propagation Delay

tRX

Receiver Output Rise and

Fall Time

Transmitter Propagation Delay

DIR to RXOUT Delay (Note 8)

tR, tF

tTX

tDIR, SKEW

Direction Duration High

tDIR, HIGH

Receiver Output Data

Duty-Cycle Variation

ΔDC

CONDITION

MIN

RXIN to RXOUT, VDIRMD1 = VDIRMD2 = 0V

RXIN to RXOUT, VDIRMD1 = 3.3V,

VDIRMD2 = 0V (38.4kbps), VDIRMD1 = 0V,

VDIRMD2 = 3.3V (115.2kbps)

10% to 90%, RL = 1kΩ, CL = 10pF

TXIN to TXOUT

270

VDIRMD1 = VDIRMD2 = 0V (9.6kbps)

VDIRMD1 = 3.3V, VDIRMD2 = 0V (38.4kbps)

VDIRMD1 = 0V, VDIRMD2 = 3.3V (115.2kbps)

RXIN fed by an OOK

2.176MHz sinusoidal

signal with 50% duty

cycle (Note 9)

RXIN = 0dBm

RXIN = -10dBm

TYP

8.9

5.5

20

1667

417

137

-7.5

+2

MAX UNITS

11

µs

11

ns

5

µs

ns

µs

±10

%

±10

Note 2: All devices are 100% production tested at TA = +25°C. Specification over temperature limits are guaranteed by design.

Note 3: Defined as ∆VRXIN/∆VCC at DC.

Note 4. Defined as ∆VTXOUT/∆VCC at DC.

Note 5: Output frequency variation determined by external crystal tolerance.

Note 6: See the Transmission Output Power section for external resistor values.

Note 7: Guaranteed by design with a recommended 470pF capacitor between RXIN and ground. Measurements above 150MHz are

determined by setup.

Note 8: See Figure 1.

Note 9: ±2μs envelope rise/fall.

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