HSP50307SC datasheet(6/8 Pages) INTERSIL

6 / 8 page

7-73

TABLE 3. GENERAL FUNCTIONAL SPECIFICATIONS

AVCC, DVCC = +5V, AVDD = +9V; RCLK = 2.048MHz; MCLK = 25.6MHz; TA = 0

oC to 70oC

PARAMETER

MIN

TYP

MAX

UNIT

QPSK Carrier Frequency

8.0

15 (Note)

MHz

QPSK Carrier Frequency Step Size

kHz

Modulation Bandwidth

192

kHz

Raised Cosine Filter Response Excess Bandwidth (

α)

0.5

Transmit Level Adjust

Data Rate

256

KBPS

Baud Rate

128

KBPS

NOTE: May operate up to 20MHz.

TABLE 4. QPSK PERFORMANCE SPECIFICATIONS

AVCC, DVCC = +5V, AVDD = +9V; RCLK = 2.048MHz; MCLK = 25.6MHz; TA = 0

oC to 70oC

PARAMETER

MIN

TYP

MAX

UNITS

Output Spurious Signals Less Than 54MHz

-40

-35

dBc

Output Spurious Signals Greater Than 54MHz

-60

-50

dBc

Off Mode Spurs

-30

dBmV

Transmit Level (D18-D13 = 000000)

dBmV

Output Gain Adjust Relative Accuracy

-0.5

0.2

0.5

Absolute Output Accuracy at Any Step

-3.0

±2

3.0

QPSK Carrier Phase Noise at 10kHz Offset

-75

dBc/Hz

QPSK Carrier Phase Noise at 1kHz Offset

-60

dBc/Hz

QPSK Modulator Carrier Suppression

dBc

QPSK I/Q Amplitude Imbalance

0.5

QPSK I/Q Phase Imbalance

2.0

Degree

QPSK Passband Amplitude Ripple

-0.3

0.3

HSP50307

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