MAX7057 MAXIM [Maxim Integrated Products], MAX7057 Datasheet - Page 4

• Manufacturer Part Number: MAX7057
• Description: 300MHz to 450MHz Frequency-Programmable ASK/FSK Transmitter
• Manufacturer: MAXIM [Maxim Integrated Products]

300MHz to 450MHz Frequency-Programmable
ASK/FSK Transmitter
AC ELECTRICAL CHARACTERISTICS (continued)
( Typical Application Circuit , 50Ω system impedance, tuned for 315MHz to 433.92MHz operation, AVDD = DVDD = PAVDD = +2.1V to
+3.6V, f RF = 300MHz to 450MHz, f
DVDD = PAVDD = +2.7V, T
teed by design and characterization over temperature, unless otherwise noted.)
Note 1: Supply current and output power are greatly dependent on board layout and PAOUT match.
Note 2: 50% duty cycle at 10kHz ASK data (Manchester coded).
Note 3: Guaranteed by design and characterization, not production tested.
Note 4: Dependent on PCB trace capacitance.
Figure 1. SPI Timing Diagram
4
SERIAL INTERFACE (SPI) TIMING CHARACTERISTICS (Figure 1)
Minimum SCLK Low to Falling-
Edge of CS Setup Time
Minimum CS Low to Rising-Edge
of SCLK Setup Time
Minimum SCLK Low to Rising-
Edge of CS Setup Time
Minimum SCLK Low After Rising-
Edge of CS Hold Time
Minimum Data Valid to SCLK
Rising-Edge Setup Time
Minimum Data Valid to SCLK
Rising-Edge Hold Time
Minimum SCLK High Pulse Width
Minimum SCLK Low Pulse Width
Minimum CS High Pulse Width
Maximum Transition Time from
Falling-Edge of CS to Valid GPO
Maximum Transition Time from
Falling-Edge of SCLK to Valid
GPO
_______________________________________________________________________________________
PARAMETER
A
= +25°C, unless otherwise noted. All min and max values are 100% tested at T
SCLK
GPO
CRYSTAL
SDI
CS
SYMBOL
t
t
t
t
t
HCS
t
t
CSH
CSG
t
t
CSS
t
t
t
CG
SC
SC
HS
DS
DH
CH
CL
t
CSG
= 16MHz, T
C
DGND
C
DGND
t
CSS
L
L
t
DS
= 10pF load capacitance from GPO to
= 10pF load capacitance from GPO to
A
t
DH
= -40°C to +125°C, unless otherwise noted. Typical values are at AVDD =
CONDITIONS
t
CG
t
CL
t
CH
t
HCS
t
CSH
t
HS
MIN
TYP
10
20
10
40
40
40
50
50
A
5
5
5
= +125°C, and guaran-
MAX
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns