nRF903 Nordic VLSI, nRF903 Datasheet - Page 9

• Manufacturer Part Number: nRF903
• Description: Multichannel RF Transceiver 433/868/915MHz
• Manufacturer: Nordic VLSI

PRODUCT SPECIFICATION
1): European regulatory restrictions. 100% TX-duty cycle is allowed for applications with <0dBm e.r.p. 10% is allowed for
2): European regulatory restrictions
3): US regulatory restrictions. 100% TX-duty cycle is allowed for applications with <-1.25dBm e.r.p. Refer to FCC CFR47,
Output power is set by bit 10 and 11 in the configuration word (ref. Table 6).
4 settings are available; 10dBm, 4dBm, -2dBm and -8dBm.
Figure 5 shows the total chip DC current consumption in transmit-mode plotted as a
function of power level setting and frequency band. Antenna matching according to
recommendations is assumed.
Nordic VLSI ASA
Revision: 3.1
part 15 for frequency hopping and spread spectrum applications
applications up to 10dBm e.r.p.
Figure 5. Total current consumption vs. power setting (typical values)
d
6
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à b
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v ‚
‡
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ˆ
†
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‚
à 8
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r
…
…
ˆ
8
30
25
20
15
10
433.1904 (up to 100% / <10%)
433.3440 (up to 100% / <10%)
433.4976 (up to 100% / <10%)
433.6512 (up to 100% / <10%)
433.8048 (up to 100% / <10%)
433.9584 (up to 100% / <10%)
434.1120 (up to 100% / <10%)
434.2656 (up to 100% / <10%)
434.4192 (up to 100% / <10%)
434.5728 (up to 100% / <10%)
-
Vestre Rosten 81, N-7075 Tiller, Norway
-8
Table 7. Channel placement for nRF903
-8
-8
-
-
-
-
-
433 MHz
868-928 MHz

-2
-2
-2
QhtrÃ(ÂsÃ"!
868.8000 (<0.1%)
868.9536 (<0.1%)
869.1072 (<0.1%)
869.8752 (100%)
868.1856 (<1%)
868.3392 (<1%)
868.4928 (<1%)
-
-
-
-
-
-
-
-
-
4
Phone [phone]
4
4

10
902.1696 (100%)
902.3232 (100%)
902.4768 (100%)
902.6304 (100%)
902.7840 (100%)
902.9376 (100%)
903.0912 (100%)
903.2448 (100%)
903.3984 (100%)
903.5520 (100%)
903.7056 (100%)
903.8592 (100%)
904.0128 (100%)
927.9744 (100%)
10
10
-
Fax [phone]
...
December 2002