AK8186B Datasheet, PDF (5/69 Pages) Asahi Kasei Microsystems – Multi Output Clock Generator with Integrated 2.0GHz VCO

PIN FUNCTION
AK8186B
Pin
No.
Pin Name
1 VDD
2 REFMON
3 LD
4 VCP
5 CP
6 STATUS
7 REF_SEL
8, SYNC
9 LF
10 BYPASS
11 VDD
12 VDD
13 CLK
14 CLK
15 NC
16 SCLK
17 CS
18 NC
19 NC
20 NC
21 SDO
22 SDIO
23 RESET
24 PD
25 OUT4
26 OUT4
27 VDD_LVPECL
28 OUT5
29 OUT5
30 VDD
31 VDD
32 VDD
(Continued on next page)
Pin
Type
PWR
OUT
OUT
---
OUT
OUT
IN
IN
IN
---
PWR
PWR
---
---
--
IN
IN
---
---
--
OUT
IN/OUT
IN
IN
OUT
OUT
PWR
OUT
OUT
PWR
PWR
PWR
Description
3.3V Power Supply.
Reference Monitor.
Lock Detect.
3.3V Power Supply for Charge Pump (CP)
Charge Pump Output. Connect to external loop filter.
Status Indication.
Reference Select. L: REF1 H: REF2.
Pulled down with 30k internal resistor.
Manual Synchronization and Manual Holdover.
Active Low. Pulled up with 30 k internal resistor.
Loop Filter Input.
This pin is for bypassing the LDO to ground.
3.3V Power supply.
3.3V Power supply.
Differential Input for the external VCO/VCXO
Differential Input for the external VCO/VCXO
No Connect. Leave open or connected to GND.
Serial clock for the Serial control port.
Pulled down with 30k internal resistor.
Chip Select for the Serial control port.
Active low. Pulled up to VDD with 30 k internal resistor.
No Connect. Leave open or connected to GND.
No Connect. Leave open or connected to GND.
No Connect. Leave open or connected to GND.
Unidirectional Serial Data Out for Serial Control Port.
Bidirectional Serial Data In/Out for Serial Control Port.
Reset.
Active low. Pulled up with 30 k internal resistor.
Power Down.
Active low. Pulled up with 30 k internal resistor.
LVPECL Output 4
LVPECL Output 4
2.5V to 3.3V Power Supply for LVPECL Output (OUT4/OUT4,
OUT5/OUT5).
LVPECL Output 5
LVPECL Output 5
3.3V Power supply
3.3V Power supply.
3.3V Power supply for OUT8/OUT8 and OUT9/OUT9.
draft-E-02
Sep-2012
-5-