nb2308a ON Semiconductor, nb2308a Datasheet
nb2308a
Available stocks
Related parts for nb2308a
nb2308a Summary of contents
Page 1
... The exact configuration and output frequencies depends on which output drives the feedback pin. The NB2308Ax3 allows the user to obtain 4X and 2X frequencies on the outputs. The NB2308Ax4 enables the user to obtain 2X clocks on all outputs. Thus, the part is extremely versatile, and can be used in a variety of applications. ...
Page 2
... Bank A NB2308Ax2 Bank B NB2308Ax3 Bank A NB2308Ax3 Bank B NB2308Ax4 Bank A or Bank B NB2308Ax5H Bank A or Bank B 1. Output phase is indeterminant (0° or 180° from input clock). If phase integrity is required, use the NB2308Ax2. Table 2. SELECT INPUT DECODING S2 S1 Clock Three-state ...
Page 3
... FBK 3. Weak pulldown. 4. Weak pulldown on all outputs. 5. Weak pullup on these inputs. NB2308A 1 REF NB2308A GND Figure 2. Pin Configuration Description Input reference frequency tolerant input. Buffered clock output, Bank A. Buffered clock output, Bank A. ...
Page 4
... IH I Input LOW Current IL I Input HIGH Current IH V Output LOW Voltage OL V Output HIGH Voltage OH I Supply Current (Note Supply currents are measured for PLL-Bypass Mode ( 0). NB2308A Min -0.5 -0.5 -0.5 -65 Description Industrial Test Conditions (-1, -2, -3, -4) ...
Page 5
... Device-to-Device Skew 7 t Cycle-to-Cycle Jitter J (-1, -1H, -4, -5H) Cycle-to-Cycle Jitter (-2, -3) t PLL Lock Time LOCK NB2308A Test Conditions 30 pF load (all devices load (-1H, -5H load (-1, -2, -3, -4) Measured at 1 < 66.66 MHz OUT 30 pF load Measured at 1 < 50 MHz ...
Page 6
... Figure 6. Output - Output Skew FBK_Device 1 FBK_Device 2 NB2308A To close the feedback loop of the NB2308A, the FBK pin can be driven from any of the eight available output pins. The output driving the FBK pin will be driving a total load plus any additional load that it drives. The relative loading of this output (with respect to the remaining outputs) can adjust the input-output delay ...
Page 7
... V CLKOUT DD OUTPUTS 0 0.1 mF GND GND Figure 9. Test Circuit #1 PLL MUX REF S2 SELECT INPUT DECODING S1 Figure 11. NB2308Ax1 and NB2308Ax1H NB2308A TEST CIRCUITS 0 LOAD 0.1 mF For parameter t BLOCK DIAGRAMS FBK CLKA1 CLKA2 REF CLKA3 S2 CLKA4 S1 CLKB1 CLKB2 CLKB3 CLKB4 http://onsemi.com ...
Page 8
... BLOCK DIAGRAMS FBK CLKA1 B2 CLKA2 CLKA3 REF CLKA4 S2 SELECT INPUT S1 CLKB1 CLKB2 CLKB3 CLKB4 MUX PLL B2 SELECT INPUT DECODING Figure 15. NB2308Ax5H http://onsemi.com 8 FBK CLKA1 CLKA2 PLL MUX CLKA3 CLKA4 DECODING CLKB1 CLKB2 CLKB3 CLKB4 Figure 14. NB2308Ax4 FBK CLKA1 CLKA2 CLKA3 ...
Page 9
... NB2308AI2DTG 2308AI2 NB2308AI2DTR2G 2308AI2 NB2308AI3DG 2308AI3G NB2308AI3DR2G 2308AI3G NB2308AI3DTG 2308AI3 NB2308AI3DTR2G 2308AI3 NB2308AI4DG 2308AI4G NB2308AI4DR2G 2308AI4G NB2308AI4DTG 2308AI4 NB2308AI4DTR2G 2308AI4 NB2308AI5HDG 2308AI5HG NB2308AI5HDR2G 2308AI5HG NB2308AI5HDTG 2308AI5H NB2308AI5HDTR2G 2308AI5H †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Spe‐ ...
Page 10
... -V- C 0.10 (0.004) -T- SEATING D PLANE 16X 0.36 *For additional information on our Pb-Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. NB2308A PACKAGE DIMENSIONS TSSOP-16 CASE 948F-01 ISSUE Ç Ç Ç 9 É É É ...
Page 11
... D 0.35 0.49 0.014 0.019 F F 0.40 1.25 0.016 0.049 G 1.27 BSC 0.050 BSC J 0.19 0.25 0.008 0.009 K 0.10 0.25 0.004 0.009 5.80 6.20 0.229 0.244 R 0.25 0.50 0.010 0.019 1.27 PITCH ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative NB2308A/D ...