MFG:GNENSIS Package Cooled:QFP D/C:08+
MFG: GNENSIS
Package Cooled: QFP
D/C: 08+
Description: The gm2121 features two clock inputs. All additional clocks are internal clocks derived from one or mo...
The gm2121 features two clock inputs. All additional clocks are internal clocks derived from one or more of these:
1. Crystal Input Clock (TCLK and XTAL). This is the input pair to an internal crystal oscillator and corresponding logic. A 20.0 MHz crystal is recommended. Other crystal frequencies may be used, but require custom programming. This is illustrated in Figure 4 below. Alternatively, a single-ended TTL/CMOS clock oscillator can be driven into the TCLK pin (leave XTAL as N/C in this case). This is illustrated in Figure 7 below. This option is selected by connecting a 10K pull-up to ROM_ADDR13 (refer to Table 17). See also Table 12.
2. Host Interface Transfer Clock (HCLK) The gm2121 TCLK oscillator circuitry is a custom designed circuit to support the use of an external
oscillator or a crystal resonator to generate a reference frequency source for the gm2121 device.
| PARAMETER | SYMBOL | MIN | TYP | MAX | UNITS |
| 3.3V Supply Voltages (1,2) | VVDD_3.3 | -0.3 | 3.6 | V | |
| 2.5V Supply Voltages (1.2) | VVDD_2.5 | -0.3 | 2.75 | V | |
| Input Voltage (5V tolerant inputs) (1,2) | VIN5Vtol | -0.3 | 5.5 | V | |
| Input Voltage (non 5V tolerant inputs) (1,2) | VIN | -0.3 | 3.6 | V | |
| Electrostatic Discharge | VESD | ±2.0 | kV | ||
| Latch-up | ILA | ±100 | mA | ||
| Ambient Operating Temperature | TA | 0 | 70 | ||
| Storage Temperature | TSTG | -40 | 125 | ||
| Operating Junction Temp. | TJ | 0 | 125 | ||
| Thermal Resistance (Junction to Air) Natural Convection (3) | JA | 29.4 | /W | ||
| Thermal Resistance (Junction to Case) Convection (4) | JC | 13.2 | /W | ||
| Soldering Temperature (30 sec.) | TSOL | 220 | |||
| Vapor Phase Soldering (30 sec.) | TVAP | 220 |
GM2121
PDF/DataSheet Download
The GM2102 is a member of Gamma Microelectronics's family of white LED drivers.The GM2102 is a fixed frequency step-up DC/DC converter designed to operate as a constant-current source. GM2102 is ideal for driving light emitting diodes (LEDs) whose light inte...
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