SA2400ABE NXP Semiconductors, SA2400ABE Datasheet - Page 21

• Manufacturer Part Number: SA2400ABE
• Manufacturer: NXP Semiconductors

Specifications of SA2400ABE

• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Package Type: LQFP
• Product Depth (mm): 7mm
• Product Length (mm): 7mm
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (max): 3.6V
• Lead Free Status / Rohs Status: Not Compliant

Philips Semiconductors
Table 16. Address 02: Synthesizer Register C
Note: Bits 22, 23 not used.
php-speedup is activated when the speed-up bit is 1 (T
register A word and stays active until a different word is sent. To prevent frequency deviations when leaving the speedup mode when
programming new words, it is recommended to keep the speedup mode always disabled by setting the Tphpsu (0x03, bit 16) to ‘1’.
NOTE: The only recommended charge pump current setting mode is CP[1:0] = 10, php-speedup not activated.
Table 17. Address 03: Synthesizer Register D
Note: Bits 22, 23 not used.
2002 Nov 04
Bit
Name
Default
Bit
CP[1:0]
SM[2:0]
CP[1:0]
00
01
10
11
Bit
Name
Default
Bit
T
T
spu
phpsu
Single chip transceiver for 2.45 GHz ISM band
21
0
21
0
Description
Charge pump current setting
Comparison divider select
Adds an extra divider at the end of the reference divider: extra division ratio = 2^SM (SM = 0 to 4)
Description
1 –> disable PHP speedup pump, overrides function of T
1 –> speedup ON
0 –> speedup OFF
20
0
20
0
‘00000’
19
0
19
0
18
0
18
0
17
0
17
0
T
phpsu
16
0
16
0
php
480 A
160 A
480 A
160 A
15
unused
0
T
15
spu
0
spu
14
0
14
in synthesizer register D). php-speedup is also entered after sending a synthesizer
0
13
0
13
0
12
0
12
21
0
11
spu
0
11
0
10
0
10
0
‘000000000000’
9
0
9
0
8
0
8
0
php-speedup
2.4 mA
800 A
2.4 mA
800 A
7
CP[1:0]
1
7
0
6
0
6
0
5
0
5
0
SM[2:0]
4
0
4
0
3
0
3
0
SA2400A
‘0’
2
0
2
0
unused
Product data
unused
1
0
1
0
0
0
0
0