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Specifications for i/q characteristics – Atec Agilent-E4438C User Manual

Page 21

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21

Specifications for I/Q Characteristics

1. PN23 is too large for Option 601 for modulation formats with 3, 5, 6, or 7 bits/symbol if the bit rate is greater than 50 Mbit/sec.
2. Parentheses denote typical performance.
3. Valid for 23° ±5° C.

Specifications for Signal Personality Characteristics

3GPP W-CDMA

[arbitrary waveform mode

3

]

[Option 400]

Data types

Internally generated data

Pseudo-random patterns

PN9, PN11, PN15, PN20, PN23

1

Repeating sequence

Any 4-bit sequence
Other fixed patterns

Direct-pattern RAM [PRAM]

Max size Option 601

8 Mbits

Option 602

64 Mbits
[each bit uses an entire sample space]

Use

Non-standard framing

User file

Max size Option 601

800 kB

Option 602

6.4 MB

Use

Continuous modulation or internally generated TDMA standard

Externally generated data

Type

Serial data

Inputs

Data, bit clock, symbol sync
Accepts data rates ±5% of specified data rate

Internal burst shape control

Varies with standards and bit rates

Rise/fall time range

Up to 30 bits

Rise/fall delay range

0 to 63.5 bits

Error vector magnitude

2

[1.8 GHz < f

c

< 2.2 GHz, root Nyquist filters, 40 MHz baseband filter, EVM optimization mode

3.84 Mcps chip rate,

≤ 4 dBm, ≤ 7 dBm with Option UNB]

1 DPCH

≤ 1.8%, (0.9%)

Level accuracy [relative to CW at 800, 900, 1800, 1900, 2200 MHz]

2

[

≤ 2.5 dBm standard, 7.5 dBm for Option UNB, and 4.5 dBm for Option 506]

±0.7 dB (±0.35 dB)

Adjacent channel leakage ratio

2

[1.8 GHz < f

c

< 2.2 GHz, default W-CDMA filters, 3.84 Mcps chip rate,

≤ 0 dBm Option UNB, ≤ –2 dBm Option 506, ≤ –3 dBm standard in
Optimize ADJ mode]

1 DPCH

–65 dBc (–67 dBc)

Test Model 1

–63 dBc (–66 dBc)

+ 64 DPCH

Alternate channel leakage ratio

2

[1.8 GHz < f

c

< 2.2 GHz, default W-CDMA filters, 3.84 Mcps chip rate,

≤ 2.5 dBm standard, ≤ 4.5 dBm Option 506, ≤ 7.5 dBm Option UNB,
in Optimize ALT mode]

1 DPCH

–71 dBc (–75 dBc)

Test Model 1

–70 dBc (–73 dBc)

+ 64 DPCH