MICRF620Z Micrel Inc, MICRF620Z Datasheet - Page 13

• Manufacturer Part Number: MICRF620Z
• Description: IC RF MOD 430-440MHZ 16-MOD1114Q
• Manufacturer: Micrel Inc

Specifications of MICRF620Z

• Sensitivity: -110dBm
• Frequency: 430MHz ~ 440MHz
• Data Rate - Maximum: 20kbps
• Modulation Or Protocol: FSK
• Applications: ISM
• Power - Output: 10dBm
• Voltage - Supply: 2 V ~ 2.5 V
• Current - Receiving: 12mA
• Current - Transmitting: 24mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -20°C ~ 75°C
• Package / Case: Module
• Modulation Type: FSK
• Data Rate Max: 20Kbps
• Supply Current: 24mA
• Kit Contents: Module Board Docs
• Tool / Board Applications: Wireless Connectivity-ZigBee, RF, Infrared, USB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 576-2424; MICRF620Z

Lock Detect
A lock detector can be enabled by setting LD_en = 1.
When pin LD is high, it indicates that the PLL is in lock.
When entering TX, the procedure is first to load the TX
word and then turn on the PA stage. During the PA ramp
up time, the LD signal may indicate out of lock. It is first
when the PA stage is fully on that the LD signal will
indicate in “Lock”. During transmission, the Lock Detect
signal will have transitions and the user should therefore,
ignore the Lock detect signal.
Modes of Operation
Micrel, Inc.
July 2006
0000000
A6..A0
0000001
A6..A0
Mode1
480
460
440
420
400
380
0
0
1
1
Figure 6. RF Frequency vs. Varactor Voltage
0
LNA_by
D7
‘1’
D7
and VCO Frequency bit (V
Mode0
0,4
0
1
0
1
D6
‘0’
VCO frequency gain, Vdd=2.5V
PA2
D6
D5
‘0’
0,8
Power down
V_varactor [V]
Transmit
Standby
Receive
PA1
State
D5
D4
‘0’
1,2
PA0
RSSI_en
D4
D3
Comments
Keeps register configuration
Only crystal oscillator running
Full receive
Full transmit ex PA state
1,6
Sync_en
D3
LD_en
D2
DD
2
= 2.5V)
Mode1
D2
PF_FC1
D1
2,4
Mode0
D1
PF_FC0
D0
D0
’1’
11
10
01
00
13
MICRF620/MICRF620Z
M9999-120205