Texas Instruments Clock Jitter Cleaner With Dual Cascaded PLLs and Integrated 2.9 GHz VCO LMK04808BEVAL/NOPB LMK04808BEVAL/NOPB 데이터 시트
제품 코드
LMK04808BEVAL/NOPB
L M K 0 4 8 X X E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S
41
For the LMK04808B, the internal VCO frequency is 2949.12 MHz. The divide-by-12 CLKout
frequency is 245.76 MHz, and the divide-by-24 CLKout frequency is 122.88 MHz.
frequency is 245.76 MHz, and the divide-by-24 CLKout frequency is 122.88 MHz.
Table 15: LMK04808B Phase Noise and RMS Jitter for Different CLKout Output Formats and Frequencies
Offset
245.76
LVDS
245.76
LVCMOS
245.76
LVPECL
122.88
LVDS
122.88
LVCMOS
122.88
LVPECL
100 Hz
-103.7
-104.4
-106.1
-108.4
-110.4
-108.5
1 kHz
-123.7
-125.9
-125.7
-128.7
-129.7
-130.9
10 kHz
-133.8
-133.5
-134.0
-139.3
-139.8
-140.0
100 kHz
-135.5
-135.4
-135.8
-141.7
-141.4
-141.8
800 kHz
-146.4
-146.3
-146.7
-151.7
-152.1
-152.4
1 MHz
-147.9
-148.0
-148.3
-152.9
-153.4
-153.8
10 MHz
-156.5
-157.5
-158.3
-158.7
-160.5
-161.0
20 MHz
-156.9
-157.8
-158.6
-158.8
-160.7
-161.3
RMS Jitter (fs)
10 kHz to 20 MHz
111.8
109.6
103.9
133.4
122.1
116.1
RMS Jitter (fs)
100 Hz to 20 MHz
124.3
122.1
115.4
144.4
132.3
127.9